Question

encontre o valor de x:
2.(x-2) +5.(2-x)+6.(x + 1)=0


(A)5
(B)-5
(C)4
(D)-4​

Answer 1

Resposta:

E a (c)4

Explicação passo-a-passo:

2.(x-2)+5.(2-x)+6.(x×1)=0

2x-4+10-5x+6x+6=0

2x-5x+6x-4+10+6=0

-3x+12=0

-3x=0-12

-3x=12.(-1)

3x=12

x=12/3

x=4