Question

me ajudem pfvvvvvvvvvv

Answer 1

Resposta:

Explicação passo a passo:

a) -3x = 27

-x = 27/3

x=-9

b) 2x = 20

x=20/2

x=10

c) 5x = -10 +3

5x= -7

x = -7/5

d) 7x = -13-1

7x = -14

x = -2