Tìm x, 12(x - 4) + 6(x - 2) - 16(x + 3) = 7|-4|, 4(x - 5) - 7(5 - x ) + 10(5 - x) = -3

12 ( x - 4 ) + 6 ( x - 2 ) - 16(x + 3 )= 7|-4|
4(x-5) -7(5-x )+10(5-x)= -3