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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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