# Beginners $A$lgebra Series

i am making a algebra problem series covering the basics of algebra also please use this note to report any problems (Note this is based on Algebra taught in Sydney NSW Australia may differ in other States/Countries do not take this as a study guide this is just tips further studying is recommended)

# Problem 4 This is a draft saved as a discussion and will be posted as a question in 5 days when it is completed you can read it for now in the meantime : )

Homework Questions Series (Once i have released all example questions i will start releasing questions based on what i have discussed in the questions for you to practice):

# Problem 4

Note by Nscs 747
4 months, 1 week ago

This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.

When posting on Brilliant:

• Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
• Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
• Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold

- bulleted
- list

• bulleted
• list

1. numbered
2. list

1. numbered
2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1

paragraph 2

paragraph 1

paragraph 2

> This is a quote
This is a quote
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in $$...$$ or $...$ to ensure proper formatting.
2 \times 3 $2 \times 3$
2^{34} $2^{34}$
a_{i-1} $a_{i-1}$
\frac{2}{3} $\frac{2}{3}$
\sqrt{2} $\sqrt{2}$
\sum_{i=1}^3 $\sum_{i=1}^3$
\sin \theta $\sin \theta$
\boxed{123} $\boxed{123}$

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@Percy jackson would you like to solve my latest addition?

- 4 months, 1 week ago

- 4 months, 1 week ago

- 4 months, 1 week ago

Solved all three, but they're too easy for me, like they're 7th grade level bro

- 4 months, 1 week ago

ik that what year they r based fpr

- 4 months, 1 week ago

Hi (some text)

- 4 months, 1 week ago

hello

- 4 months, 1 week ago

all solved, easy👍🏻

- 4 months, 1 week ago

: )

- 1 month, 4 weeks ago

@Brilliant Mathematics do you like my algebra notes?

- 2 months, 1 week ago

These are good. The next step is to apply real life examples to demonstrate the importance of algebra.

Staff - 2 months, 1 week ago

Wow, you actually replied. You know I thought you were busy taking down jokes and having a bad sense of humor 😑

- 2 months, 1 week ago

I know.

Staff - 2 months, 1 week ago

Alright, I agree you won't be taken very seriously if you joke all the time...🤣

- 2 months, 1 week ago

will do

- 2 months ago

wait wdym by real life example u mean like jack had ab and gave lisa a those type of questions? or like scenarios in when to use this skill

- 1 month, 4 weeks ago

Yes.$\quad$

Staff - 1 month, 4 weeks ago

Whic one the first one the second one or both

- 1 month, 3 weeks ago

i propose to add brackets in your problem 2. like Lâm Lê said: --7 or even +-3 is very uncommon. maybe it is a very new thing, but i've never seen it.
annotation: the commutative law ab=ba is valid in your problem because its about real numbers. if it were about matrices then this is not always true.

- 2 months ago

I don’t know what matrices are I’m just basing it on year 7 maths I have learnt at my school

- 2 months ago

yeah i know, i just wanted to inform you that there are things in maths where the commutative law cannot always be used.
so i value that you mentioned a* b=b* a in your introduction.

regarding the other remark:
does your teacher use --7 ? or does he/she use -(-7) ?

- 2 months ago

we use either but in basic introductions of algebra you learn that the operation always belongs to the term that comes after it i will edit it today since i am on computer

- 2 months ago

yeah no problem. i was just curious. (i'm sorry if it sounded like a claim)
i have never seen --7, so was eager to know if there was a new notation introduced.

- 2 months ago

- - 7 the - on the right belongs to the term on the right of it which in this case is 7 since there is another - in front you can easily in your mind change it to a + because of the double negative

- 2 months ago

i just recognized that there is a small 'L' missing in your title

- 2 months ago

oh bruh how have i not noticed that for 2 months

- 1 month, 4 weeks ago

so it is intentional? bcs problem 2, 3 and 4 still missing an 'l'

- 1 month, 4 weeks ago

No it’s that u know how it saves the names I use for the problems I just did that instead of typing them seperately

- 1 month, 4 weeks ago

ok. i just was not sure if you wanted to leave it like that bcs it's funny or if you have overlooked it.

- 1 month, 4 weeks ago

I just overlooked it

- 1 month, 4 weeks ago

I will fix it in 3 days when I am on a. Computer

- 1 month, 4 weeks ago

good idea to use another font for the 'A'. that creates a special look.

- 1 month, 4 weeks ago

ye i use it to represent like how in textbooks the algebra lettera are in a different font

- 1 month, 3 weeks ago

@NSCS 747 $--x$ is a little unclear. Plz do $-(-x)$.

- 4 months ago

I don’t really put it because in algebra they teach you that the symbol always belongs to the value on the left as a basic rule but if you want I can do that

- 2 months, 1 week ago