5x-3=(x+7)+3

5x-3=(x+7)+3

5x-3=x+10

-x      -x               ---Subtract x from both sides

4x-3 = 10

    +3   +3              ---Add 3 to both sides

4x = 13

/4      /4               ---Divide both sides by 4

 

x = 13/4

or

x = 3.25

 

Let's check it:

5(3.25)-3=((3.25)+7)+3

16.25-3 = 10.25 + 3

13.25 = 13.25