Jawabanmu

2014-09-07T22:18:09+07:00
7x + 3(x - 1) = 2(3x - 5) + 5 (x + 1)=> 7x + 3x - 3 = 6x - 10 + 5x + 5
=> 7x +3x - 6x - 5x = -10 + 5 - 3
=> 4x = -8
=> x = -8/4
=> x = -2
2014-09-07T22:20:50+07:00
7x+3x-3=6x-10+5x+5
10x-3=11x-5
10x-11x=-5+3
-1x=-2
x=2