Solve for y
y=3
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9y-3-4y=12
Subtract 4y from both sides.
5y-3=12
Combine 9y and -4y to get 5y.
5y=12+3
Add 3 to both sides.
5y=15
Add 12 and 3 to get 15.
y=\frac{15}{5}
Divide both sides by 5.
y=3
Divide 15 by 5 to get 3.
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