by 
Anonymous
ANSWERS: 2
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Sqrt(2y+3) = 11. "Undo" the square root by squaring both sides. Then since there is a +3, subtract 3 from both sides. Then, since y is multiplied by 2, divide both sides by two. Now y is by itself, whatever is on the other side of the equals sign is the answer.
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(sqrrt2y+3)^2=11^2 2y+3=121 2y+3-3=121-3 2y=118 2y/2=118/2 y=56
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