Solve for a
a=3
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3a-4=\frac{15}{3}
Divide both sides by 3.
3a-4=5
Divide 15 by 3 to get 5.
3a=5+4
Add 4 to both sides.
3a=9
Add 5 and 4 to get 9.
a=\frac{9}{3}
Divide both sides by 3.
a=3
Divide 9 by 3 to get 3.
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Limits
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