Question

calcule a+b sabendo que: a=10x+2.(4-x) e b=2.(x-4)​

Answer 1

Resposta:

A + B = 10X

Explicação passo-a-passo:

(foto)

A = 10X + 2(4 - X)

B = 2(X - 4)

A = 10X - 2X + 8

B = 2X - 8

A = 8X + 8

B = 2X - 8

(A) + (B)

(8X + 8) + (2X - 8)

8X + 8 + 2X - 8

8X + 2X + 8 - 8

10X + 0

10X

A + B = 10X