### Home > CCAA > Chapter 8 Unit 7 > Lesson CC2: 8.1.1 > Problem8-15

8-15.

Solve the following equations using any method. Show your work and check your solution.

1. $5x+20=3x+4$

Once you have found an answer, substitute it for $x$ in the original equation to check if you are correct.

$x=-8$

1. $7x-4=3x+8$

1. $2x+6=x-9$

$x=-15$