:1)7х-5-4(2х-9)= 2)5(х--11)= 3)х-7-3(2х-8)= 4)6(2х+3)-4(7х-20)= - вопрос №4400652175429251137328462347205533 от Sasha2280865 14.05.2020 14:39

Question

Алгебра: :1)7х-5-4(2х-9)= 2)5(х--11)= 3)х-7-3(2х-8)= 4)6(2х+3)-4(7х-20)= 5)5(3х-3у+3)-6(3х-у-4)+3(х+у+1)= 6)25(2х-4у+7)-6(5х-11у+3)-2(10х-17у-4)=

Sasha2280865 · Answer

1) 7х-5-4(2х-9)=7х-5-8х+36=31-х2)5(х-3)-(6х-11)=5х-15-6х+11=-х-43)х-7-3(2х-8)=х-7-6х+24=17-5х4)6(2х+3)-4(7х-20)=12х+18-28х+80=68-16х5)5(3х-3у+3)-6(3х-у-4)+3(х+у+1)=15х-15у+15-18х+6у+24+3х+3у+3...