2(x-6)-4(x+2)=12 3(6-x)+9(x-3)=18
1) 2X - 12 - 4X - 8 = 12 - 2X - 20 = 12 - 2X = 32 X = ( - 16) ////////////////////////////// 2) 18 - 3X + 9X - 27 = 18 6X - 9 = 18 6X = 27 X = 4.5