Solve for a
a=1
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9a-15+7a=1
Add 7a to both sides.
16a-15=1
Combine 9a and 7a to get 16a.
16a=1+15
Add 15 to both sides.
16a=16
Add 1 and 15 to get 16.
a=\frac{16}{16}
Divide both sides by 16.
a=1
Divide 16 by 16 to get 1.
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