Solve for y
y=20
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30+3y=90
Combine 2y and y to get 3y.
3y=90-30
Subtract 30 from both sides.
3y=60
Subtract 30 from 90 to get 60.
y=\frac{60}{3}
Divide both sides by 3.
y=20
Divide 60 by 3 to get 20.
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