(х+8)=3 1-5(2-3х)=6 7-3(х+1)=6 5-2(3-х)=11 2х-(7+х)=2 - вопрос №2229162831523673165231127233321 от pirmnastia 30.04.2020 08:50

Question

Математика: (х+8)=3 1-5(2-3х)=6 7-3(х+1)=6 5-2(3-х)=11 2х-(7+х)=2 -3-3(3-2х)=1

pirmnastia · Answer

-(х+8)=3  -х-8=3-х=3+8-х=11х= -111-5(2-3х)=6 1-10+15х=615х=6-1+1015х=15х=15:15х=17-3(х+1)=6 7-3х-3=63х=7-3-63х= -2х= -2/35-2(3-х)=11 5-6+2х=112х=11-5+62х=12х=12:2х=62х-(7+х)=2 2х-7-х=2х=2+7х=9-3-3(3-2х)=1-3-9+6х=16х=1+3+96х=13х=13/6х=2  1/6...