Question

a) 9x = 15 + 12
b) 8 x - 4 x = 16​

Answer 1

Resposta:

a) 9x - 15 = 12

9x = 12 + 15

9x = 27 (divide both sides by 9 to get x)

9x/9 = 27/9

x = 3

b)8x=4x+16

8x-4x = 16

4x = 16

x = 16/4

X=4

Explicação passo a passo: