Упростите: 1)7х-5-4(2х-9)= 2)5(х-3)-(6х-11)= 3)х-7-3(2х-8)= 4)6(2х+3)-4(7х-20)=...

Question

Упростите:
1)7х-5-4(2х-9)=
2)5(х-3)-(6х-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)=

Answer 1

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