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## Solving Equations

From supply and demand to position and velocity, equations model the world around us. Equip yourself with the tools necessary to solve for x. See more

# Solve by Elimination

Solve the following system of equations: $\begin{cases} 2x+y=7 \\ 4x-y=5. \end{cases}$

Solve the following system of equations: $\begin{cases} -3x+4y=29 \\ -7x-4y=1. \end{cases}$

Let $$x = a$$ and $$y = b$$ be the solution of the following system of linear equations: $x-y=7, 3x+2y=26.$ What is the value of $$a+b$$?

Given that $$x$$ and $$y$$ are real numbers satisfying the equations $$3x - 2y = 22$$ and $$7x + 3y = 105$$, what is the value of $$x+y$$?

Solve the following system of equations: $\begin{cases} 6x+2y=42 \\ 8x-4y=36. \end{cases}$

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