1) 3(х-2)=х+2. 2) 5-2(х-1)=4-х. 3) (7х+1)-(9х+3)=5
1. 3 ( х - 2 ) = х + 2 3х - 6 = х + 2 3х - х = 2 + 6 2х = 8 х = 4. 2. 5 - 2 ( х - 1 ) = 4 - х 5 - 2х + 2 = 4 - х -2х + х = 4 - 2 - 5 -х = -3 х = 3 3. ( 7х + 1 ) - ( 9х + 3 ) = 5 7х + 1 - 9х - 3 = 5 7х - 9х = 5 + 3 - 1 -2х = 7 х = -3,5. Удачи)))
1) 3x-6=x+2 3x-x=2+6 2x=8 x=4 2) 5-2x+2=4-x -2x+x=4-2-5 -x=-3 x=3 3) 7x+1-9x-3=5 -2x=5+3-1 -2x=7 x=-3.5