Solve for x
x=4
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112-4x=100-x
Use the distributive property to multiply 4 by 28-x.
112-4x+x=100
Add x to both sides.
112-3x=100
Combine -4x and x to get -3x.
-3x=100-112
Subtract 112 from both sides.
-3x=-12
Subtract 112 from 100 to get -12.
x=\frac{-12}{-3}
Divide both sides by -3.
x=4
Divide -12 by -3 to get 4.
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