SOLUTION: Solve for y, where y is a real number.
{{{ sqrt (y + 20 = y) }}}
If there is more than one solution, separate them with commas
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Question 392420: Solve for y, where y is a real number.
If there is more than one solution, separate them with commas
Found 2 solutions by nerdybill, robertb:
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
I think you mean:
square both sides to give you:
y = {-4, 5}
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
Square both sides:
,
==>
==> (y-5)(y+4) = 0 ==> y = 5, -4.
Y = 5 satisfies the original equation, while y = -4 does not.
Therefore the final answer is only y = 5.
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