Solve for y
y=45
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2y+10=100
Combine y and y to get 2y.
2y=100-10
Subtract 10 from both sides.
2y=90
Subtract 10 from 100 to get 90.
y=\frac{90}{2}
Divide both sides by 2.
y=45
Divide 90 by 2 to get 45.
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