## Excel in math and science

### Master concepts by solving fun, challenging problems.

## It's hard to learn from lectures and videos

### Learn more effectively through short, conceptual quizzes.

## Our wiki is made for math and science

###
Master advanced concepts through explanations,

examples, and problems from the community.

## Used and loved by 4 million people

###
Learn from a vibrant community of students and enthusiasts,

including olympiad champions, researchers, and professionals.

## Comments

Sort by:

TopNewestThere are two solutions, namely:

\[\begin{bmatrix}{9} && {5} && {4} \\ {6} && {3} && {2} \\ {1} && {7} && {8}\end{bmatrix} \qquad \text{ and } \qquad \begin{bmatrix}{9} && {5} && {4} \\ {6} && {3} && {2} \\ {7} && {1} && {8}\end{bmatrix} \] – Pi Han Goh · 1 year, 2 months ago

Log in to reply

– Aditya Kumar · 1 year, 2 months ago

Can u read what is given? Or did u translate it?Log in to reply

Use numbers 1 to 9 that satisfy the four equations show in the picture. Thanks – Mian Sayed jamal · 1 year, 2 months ago

Log in to reply

– Aditya Kumar · 1 year, 2 months ago

Can u translate it in English?Log in to reply

– Tay Yong Qiang · 1 year, 2 months ago

Basically it says to fill up the 9 circles with digits 1-9 without reptition such that the operations around the circles works.Log in to reply