Question

resolva as equaçoes encontrando o valor de x a] 8x-40=16 b] x+4=12 c] x+3=12?

Answer 1

Resposta:

a- 8x-40=16

8x=16+40

8x=56

x=56

8

x=7

b-x+4=12

x=12-4

x=8

c-x+3=12

x=12-3

x=9