6(7x-11)-13(x-6)=14(2x+1)=
42x - 66 -13x+ 78=28x +14 42x-13x-28x=66-78+14 1x=2 x=2
42x-66-13x+78=28x+14 29x+12=28x+14 29x-28x=14-12 x=2