### Home > CCAA8 > Chapter 4 Unit 5 > Lesson CCA: 4.2.2 > Problem 4-53

4-53.

Rianna thinks that if and if

*, then*

*. Is she correct?*

If you add the same amount to both sides of the equals sign, then the equation remains true.

Adding to one side is the same as adding

*to the other because*

*and*

*are equal.*

Therefore, the equation