Question

СРОООЧНО ПОМОГИТЕ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 7x+1=8x+9 3(2x+8)-(5x+2)=0 -2(3,1x-1)+3(1,2x+1)=-14,5

Answer 1

1)-x+1=9
x=-8
2)6x+24-5x-2=0
x+22=0
x=-22
3)-6.2x+2+3.6x+3=-14.5
-2.6x+5=-14.5
-19.5=-2.6x
x=7.5

Answer 2

7x+1=8x+9
7х-8х=9-1
х=-8

3(2x+8)-(5x+2)=0
6х+24-5х-2=0
х=2-24
х=-22

-2(3,1x-1)+3(1,2x+1)=-14,5
-6,2х+2+3,6х+3=-14,5
-2,6х=-19,5
х=7,5