Ответ:\(3x=36-x\), \(4x=36\), \(x=9\).\(13x+24=9x\), \(4x=-24\), \(x=-6\).\(8x+5=5x+29\), \(3x=24\), \(x=8\).\(7x-4=4x+17\), \(3x=21\), \(x=7\).\(x+2=5x+18\), \(-4x=16\), \(x=-4\).\(7-4x=2x-23\), \(30=6x\), \(x=5\).