Question

30-2x=10
50-x=18
(x-10)-32=7

Answer 1

30 - 2x = 10

2x = 30 - 10

2x = 20

x = 10

50 - x = 18

x = 50 - 18

x = 32

(x - 10) - 32 = 7

x - 10 = 39

x = 49

Answer 2

`30-2x=10`

`=>2x=30-10`

`=>2x=20`

`=>x=20:2`

`=>x=10`

`-------`

`50-x=18`

`=>x= 50-18`

`=>x=32`

`------`

`(x-10)-32=7`

`=>x-10= 7+32`

`=>x-10=39`

`=>x=39+10`

`=>x= 49`

Answer 3

30-2x=10

     2x=30-10

     2x=20

       x=20: 2

       x=10

50-x=18

     x=50-18

     x=32

(x-10)-32=7

       x-10=7+32

       x-10=39

            x=39+10

            x=49