Solve for a
a=18
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5a+5+5=100
Combine 3a and 2a to get 5a.
5a+10=100
Add 5 and 5 to get 10.
5a=100-10
Subtract 10 from both sides.
5a=90
Subtract 10 from 100 to get 90.
a=\frac{90}{5}
Divide both sides by 5.
a=18
Divide 90 by 5 to get 18.
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Limits
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