Question

-9(4-3x)=4-(x-6)-7         y      -4(x-12)=5-(-x+5)          y       -6-(4x-8)=12-x

Answer 1

a) -9(4-3x)=4-(x-6)-7//36+27x=4-x+6-7//27x+x=4+6-7+36//28x=39//x=39/28//..............b)-4(x-12)=5-(-x+5)//-4x+48=5+x-5//-4x-x=-48//-5x=-48//x=48/5//...............c)-6-(4x-8)=12-x//-6-4x+8=12-x//-4x+x=12-8+6//-3x=10//x=-10/3//