Question

4x+5=2x-7
5x-7=13
3(x+2)=2(x+2)
2x-4=8+2x
4x+6=2(2x+3)

Answer 1

1)4x+5=2x-7
4x-2x=-7-5
2x=-13
x=-13:2
x=-6,5
2)5x-7=13
5x=13+7
5x=20
x=20:5
x=4
3)3(x+2)=2(x+2)
3x+6=2x+4
3x-2x=4-6
-x=-2
x=2