Solve for x
x = \frac{9}{2} = 4\frac{1}{2} = 4.5
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80+x=79-x+10
Add 72 and 8 to get 80.
80+x=89-x
Add 79 and 10 to get 89.
80+x+x=89
Add x to both sides.
80+2x=89
Combine x and x to get 2x.
2x=89-80
Subtract 80 from both sides.
2x=9
Subtract 80 from 89 to get 9.
x=\frac{9}{2}
Divide both sides by 2.
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