Question

7x – 33 = - 12

f) 9x – 2 = 4x + 18 me ajudem pf

Answer 1

Resposta:

7x – 33 = - 12

7x = -12+33

7x = 21

x = 21/7= 3

f) 9x – 2 = 4x + 18

9x-4x-2= 18

9x-4x=18+2

5x= 20

x=20/5

x=4

Explicação passo-a-passo: