Question

equaçao=

x-7+2(x-4)= -3(x+2)-8

Answer 1

x-7+2(x-4)= -3(x+2)-8 <=>
<=> x - 8 + 2x - 8 = -3x - 6 - 8 <=>
<=> 3x + 3x = 8 + 8 - 6 - 8 <=>
<=> 6x  = 16 - 6 - 8 <=>
<=> 6x = 2 <=>
<=> x = 2/6 = 1/3

Answer 2

x-7+2(x-4)=-3(x+2)-8
x-7+2x-8=-3x-6-8
x+2x+3x=-6-8+7+8
6x=1
x=1/6
Resposta: 1/6