Answer:
x = -8
Explanation:
Step 1:
Isolate the x by subtracting 13 on the left
1/2x = 9
Now subtract the 13 on the right to balance things out
1/2x = 9 - 13
Simplify
1/2x = -4
Step 2:
Multiply -8 by 2 because it's 1/2x, not 1x
x = -4(2)
x = -8
Cheers.