연립일차방정식

For each system of linear equations, decide whether it would be more convenient to solve it by substitution or elimination. Explain your answer.

ⓐ $\left\{\begin{array}{l}4x-5y=-32 \\ 3x+2y=-1\end{array}\right.$ ⓑ $\left\{\begin{array}{l}x=2y-1 \\ 3x-5y=-7\end{array}\right.$

For each system of linear equations, decide whether it would be more convenient to solve it by substitution or elimination. Explain your answer.

ⓐ $\left\{\begin{array}{l}y=2x-1 \\ 3x-4y=-6\end{array}\right.$ ⓑ $\left\{\begin{array}{l}6x-2y=12 \\ 3x+7y=-13\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}5x+2y=2 \\ -3x-y=0\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}-3x+y=-9 \\ x-2y=-12\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}6x-5y=-1 \\ 2x+y=13\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}3x-y=-7 \\ 4x+2y=-6\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}x+y=-1 \\ x-y=-5\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}x+y=-8 \\ x-y=-6\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}3x-2y=1 \\ -x+2y=9\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}-7x+6y=-10 \\ x-6y=22\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}3x+2y=-3 \\ -x-2y=-19\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}5x+2y=1 \\ -5x-4y=-7\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}6x+4y=-4 \\ -6x-5y=8\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}3x-4y=-11 \\ x-2y=-5\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}5x-7y=29 \\ x+3y=-3\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}6x-5y=-75 \\ -x-2y=-13\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}-x+4y=8 \\ 3x+5y=10\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}2x-5y=7 \\ 3x-y=17\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}5x-3y=-1 \\ 2x-y=2\end{array}\right.$

Solve a System of Equations by Elimination

In the following exercises, solve the systems of equations by elimination.

$\left\{\begin{array}{l}7x+y=-4 \\ 13x+3y=4\end{array}\right.$