Solve for x
x=12
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8+5+x=\frac{100}{4}
Divide both sides by 4.
8+5+x=25
Divide 100 by 4 to get 25.
13+x=25
Add 8 and 5 to get 13.
x=25-13
Subtract 13 from both sides.
x=12
Subtract 13 from 25 to get 12.
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