Question

I need help on 31 and 33

Answer 1

31:

The Equation:

8 + N/3 = -2

The Equation Solved:

N/3 = -10
3 · N = -10 · 3
N = -30

33:

The Equation:

6 ( N + 15 ) = -42

The Equation Solved:

6N + 90 = -42
6N = -132
N = -22

Answer 2

31.

8 + x/3 = -2

Substract both sides by 8:

x/2 = -10

Multiply:

x = -20

33.

6 * (x + 15) = -42

We can divide both sides by 6:

x + 15 = -7

Substract both sides by 15:

x = -22