Solve for x
x=104
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x-4=516-4x
Use the distributive property to multiply 4 by 129-x.
x-4+4x=516
Add 4x to both sides.
5x-4=516
Combine x and 4x to get 5x.
5x=516+4
Add 4 to both sides.
5x=520
Add 516 and 4 to get 520.
x=\frac{520}{5}
Divide both sides by 5.
x=104
Divide 520 by 5 to get 104.
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