### Home > CC3 > Chapter 8 > Lesson 8.2.2 > Problem 8-70

8-70.

Solve the equations below for the indicated variable. Homework Help ✎

3(2

*x*− 1) + 2*y*= 5*x*for*y*600

*x*+ 200*y*= 500*x*for*x*

3(2*x*) − 3(1) + 2*y* = 5*x* Distribute.

6*x* − 3 + 2*y* = 5*x*

-6*x* -6*x* Subtract 6*x* from both sides.

−3 + 2− = −*x*

+3 +3 Add 3 to both sides

2y = -x + 3

Divide both sides by 2.

Follow the same method as in part (a).