Solve for x
x=8
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3\left(12-x\right)=x+4
Multiply both sides of the equation by 12, the least common multiple of 4,12.
36-3x=x+4
Use the distributive property to multiply 3 by 12-x.
36-3x-x=4
Subtract x from both sides.
36-4x=4
Combine -3x and -x to get -4x.
-4x=4-36
Subtract 36 from both sides.
-4x=-32
Subtract 36 from 4 to get -32.
x=\frac{-32}{-4}
Divide both sides by -4.
x=8
Divide -32 by -4 to get 8.
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