### Home > CCA2 > Chapter 3 > Lesson 3.1.3 > Problem3-51

3-51.

While Jenna was solving the equation $150x+300=600$, she wondered if she could first change the equation to $x+2=4$. What do you think?

1. Solve both equations and verify that they have the same solution.

Subtract $300$ from both sides. Then, divide both sides by $150$.

$150x+300=600\\150x=300$

Subtract $2$ from both sides.

$x+2=4$

$x=2$

2. What did Jenna do to the equation $150x+300=600$ to change it to $x+2=4$?

Are the expressions on both sides of the equation divisible by $150$?

3. Use the same method to rewrite and solve $60t−120=300$.

See part (b).