2-(5+8х)=3х-8х -5(2х+1)=(4-3х)*2 3(2х-1)—5(7-х)=8(1-х)-3(х+5) - вопрос №6907441258385214323215781353 от makeewaalexandra 17.07.2021 02:51

Question

Математика: 2-(5+8х)=3х-8х -5(2х+1)=(4-3х)*2 3(2х-1)—5(7-х)=8(1-х)-3(х+5) : 3

makeewaalexandra · Answer

1) 2-5-8х=3х-8х ; -8х-3х+8х=-2+5 ; -3х=3 ; х=3/-3 ; х=-1. 2)-10х-5=8+6х ; -10х-6х=8+5 ;-16х=4 ; х=-4.  последнее незнаю(...