SOLUTION: square root y+ square root y+7)=(7)

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Question 310561: square root y+ square root y+7)=(7)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%28y%29%2Bsqrt%28y%2B7%29=7
sqrt%28y%29=7-sqrt%28y%2B7%29
Square both sides.
y=49-14sqrt%28y%2B7%29%2B%28y%2B7%29
0=56-14sqrt%28y%2B7%29
14sqrt%28y%2B7%29=56
sqrt%28y%2B7%29=4
y%2B7=16
highlight_green%28y=9%29
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Verify the solution.
sqrt%28y%29%2Bsqrt%28y%2B7%29=7
sqrt%289%29%2Bsqrt%289%2B7%29=7
3%2Bsqrt%2816%29=7
3%2B4=7
7=7
True, then it's a good solution.