Answer:
X= 5
Explanation:
1/2x -3 = 7
first you + 3 to both sides to get the x by it's self on one side of the (=)
Why +3 and not -3? because if you add 3 to the -3 on that side it goes to 0 witch means there is nothing there!
1/2x= 10
now you (/) by 2
10/2 =5
x=5