Respostas

2014-06-25T15:38:51-03:00
2(x+1)-3(2x-5)=6x-3
2x+2-6x+15=6x-3
2x-6x-6x=-3-2-15
-10x=-20
x=2
1 5 1
2014-06-25T15:40:43-03:00
2(x+1)-3(2x-5)=6x-3
2x+2-6x+15=6x-3
-4x+17-6x=-3
-10x=-17-3 ×(-1)
10x=20
x=20÷10
x=2