Question

Упростить выражения :
1) 3(-2х-4)+2(3х+8)+2х
2) 3(-8х+4)+2(12х-8)+2х
3) 7(3х+8)-(9+х)-4(2-5х)
4) 9(2у-1)-2(5+3у)-(у-8)
5) -3(4-2х)+7(х-2)
6) 4(3х-1)-8(2х+5)

Answer 1

1) 3(-2х-4)+2(3х+8)+2х= -6х-12+6х+16+2х=2х+4
2) 3(-8х+4)+2(12х-8)+2х= - 24х+12+24х-16+2х=2х-4
3) 7(3х+8)-(9+х)-4(2-5х)=21х+56-9-х-8+10х=30х+39
4) 9(2у-1)-2(5+3у)-(у-8)=18у-9-10-6у-у+8=11у-11
5) -3(4-2х)+7(х-2)=-12+6х+7х-14=13х-26
6) 4(3х-1)-8(2х+5)=12х-4-16х-40=-4х-44