Question

1: 3x+7=x-3
2:4x-1=3x+2
3:2(x-1)-2(x-2)=-(x-3)
4:2(x-1)=7+x
5:3-(2x-1)=3(-2x-1)

Answer 1

1)  3x +7 = x -3
     3x -x = -3 -7
     2x = -10
       x = -10/2
       x = -5


2)  4x -1 = 3x +2
     4x -3x = 2 +1
     x = 3


3)  2(x-1)-2(x-2)=-(x-3)
     2x -2 -2x +4 = -x +3
     2x -2x +x = 3 +2 -4
     x = 1


4)  2(x -1) = 7 +x
     2x -2 = 7 +x
     2x -x = 7 +2
     x = 9


5)  3 -(2x -1) = 3(-2x -1)
     3 -2x +1 = -6x -3
     -2x +6x = -3 -3 -2
             4x = -8
               x = -8/4
               x = -2