Question

x+7=3
x=¿?

2x - 3 = 6 + x
x¿?
4x - 6 = 6 + x
x=¿?
2x + 2 - 3x + 6 = x + 6
x=¿?

AYUDA !

Answer 1

x+7=3
x=3-7
x=-4

2x-3=6+x
2x-x=6+3
x=9

4x-6=6+x
4x-x=6+6
3x=12
x=12/3
x=4

2x+2-3x+6=x+6
2x-3x-x=6-2-6
-2x=-2
x=-2/-2
x=1

:)