4*(1,2х+3,7)=2,8 4(2-3х)-2(9х-8)=15(1-х). Created by dospankulova. matematika-ru

4*(1,2х+3,7)=2,8 4(2-3х)-2(9х-8)=15(1-х)...

dospankulova @dospankulova

July 2022 1 4 Report

4*(1,2х+3,7)=2,8 4(2-3х)-2(9х-8)=15(1-х)

Answers & Comments

vmaluga2011

Verified answer

4(1,2х+3,7)=2,8
4,8х+14,8=2,8
4,8х=2,8-14,8
4,8х=-12
х=-12:4,8
х=-2,5

4(2-3х)-2(9х-8)=15(1-х)
8-12х-18х+16=15-15х
8+16-15=-15х+12х+18х
9=15х
х=9:15
х=0,6

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Answers & Comments

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