Solve for x
x=92
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4x+x+4x-108=720
Multiply both sides of the equation by 4.
5x+4x-108=720
Combine 4x and x to get 5x.
9x-108=720
Combine 5x and 4x to get 9x.
9x=720+108
Add 108 to both sides.
9x=828
Add 720 and 108 to get 828.
x=\frac{828}{9}
Divide both sides by 9.
x=92
Divide 828 by 9 to get 92.
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