### Home > CCA2 > Chapter A > Lesson A.1.2 > Problem A-22

A-22.

Solve each system of equations below.

Substitute

for in the second equation.

Multiply the entire second equation by

Add the equations together.

Solve for

.

A-22.

Solve each system of equations below.

Substitute

for in the second equation.

Multiply the entire second equation by

Add the equations together.

Solve for

.