Question

Kira solved the equation in the following way.

7
2
− 2x = 11
2

7
2
− 7
2
− 2x = 11
2
− 7
2

−2x ÷ −2 = 4
2
÷ − 2

x = −1

Describe the properties of equality that Kira used.

Answer 1

I can barely understand this.

Explanation:

why are all the numbers on the side for