
Philip P. answered 07/29/14
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3y2 + 51 = 918
Subtract 51 from both sides:
3y2 = 918 - 51 = 867
Divide both sides by 3:
y2 = 867/3 = 289
Take the square root of both sides:
√y2 = √289
y = ±17
Nikky C.
07/29/14