3(2x+5)/8-2(5x+7)/3=7(x-15)/4-6 7/8
(6х+15)\8-(10х+14)/3=(7х-105)/4-55/8 (18х+45)/24-(80х+112)/24=(42х-630)/24-165/24 18х+45-80х-112=42х-630-165 18х-80х-42х=-630-165-45+112 -104х=-728 х=7