11+3х=55+4х -15-4х--8+45 -8х-17=3х-105 2(y+3)=21-3y - вопрос №8647707113554154845817310523213233133 от marybyl86 19.08.2021 18:28

Question

Математика: 11+3х=55+4х -15-4х--8+45 -8х-17=3х-105 2(y+3)=21-3y (2-c)+3(c-3)=-13 -3(l-3b)-12=12

marybyl86 · Answer

1. 11+3х=55+4х 3x-4x=55-11-x=44x=-442.-15-4х=-8+45-4x=-8+45+15-4x=52x=-133.-8х-17=3х-1053x+8x=17-10511x=-88x=-84.2(y+3)=21-3y2y+6=21-3y2y+3y=21-65y=15y=35.(2-c)+3(c-3)=-132-c+3c-9=-132c=-13+9-22c=-6c=-36.-3(l-3b)-12=12-3+9b-12=129b=12+12+39b=27b=3...