Question

4x-20=0; 3x-5=4x+1; 2(x+7)=9-2

Answer 1

4x=0+20
4x=20
x=20:4
x=5

3x-4x=5+1
-1x=6
x=6:(-1)
x=-6

2x+14=9-2
2x=7-14
2x=-7
x=-7:2
x=-3,5

Answer 2

4х-20=0
4х=20
Х=5

3х-5=4х+1
3х-4х=1+5
-х=6
Х= - 6

2(Х+7)=9-2
2х+14=7
2х= -7
Х= -7/2= - 3,5