Answer: x = 20
Explanation:
1) Move all terms to the left:
x-13-(x/2-3)=0
2) Get rid of parentheses
x-x/2+3-13=0
3) Multiply all the terms by the denominator
x*2-x+3*2-13*2=0
4) Add all the numbers together, and all the variables
-1x+x*2-20=0
5) Multiply elements
-1x+2x-20=0
6) Add all the numbers together, and all the variables
x-20=0
7) Move all terms containing x to the left, all other terms to the right
x=20
Hope This Helps (From My Notes)