Question

5-(2x+7)=-x+3.(-x+4)

Answer 1

5-(2x+7)=-x+3.(-x+4)5 - 2x - 7 = -x - 3x + 12
-2x - 2 = -4x + 12
-2x + 4x = 12 + 2 
2x = 14
x = 14 ÷ 2
x = 7

Resposta: x = 7

Answer 2

Olá,

Vamos lá,

5-(2x+7)=-x+3.(-x+4)
5-2x - 7 = -x-3x +12
-2x+3x+x = 12 + 7 - 5
2x = 14
x=14/2
x= 7

Resposta: x=7