5(x-3)-2(x-7)+7(2x+6)=7
5x – 15 – 2x + 14 + 14x + 42 = 7
5x – 2x + 14x = 7 – 42 – 14 + 15
17x = -34
x = -2
5(x-3)-2(x-7)+7(2x+6)=7
5x – 15 – 2x + 14 + 14x + 42 = 7
5x – 2x + 14x = 7 – 42 – 14 + 15
17x = -34
x = -2