7х+3=x+158x+2=x-12x-1=x+214x+6=2x+30 по математике - вопрос №168409687315821212146230 от yana221002 13.03.2020 17:40

Question

Математика: 7х+3=x+158x+2=x-12x-1=x+214x+6=2x+30 по математике​

yana221002 · Answer

7х+3=х+15 7х-х=15-36х=12Х=28х+2=х-18х-х=-1-27х=-3Х= -3/7 2х-1=х+22х-х=2+1Х=2+1Х=3 14х+6=2х+3014х-2х=30-612х=30-612х=24Х=2...

7х+3=x+158x+2=x-12x-1=x+214x+6=2x+30 по математике​