решите два уравнения 2(11x-5)17х=55 5(8х+3)-12=83

1)40х+3=83;40х=83-3;40х=80;х=2

2(11x-5)-17x=55;22x-10-17x=55;5x=55+10;5x=65;x=65÷5;x=13.5(8x+3)-12=83;40x+15-12=83;40x=83+12-15;40x=80;x=80÷40;x=2.