SOLUTION: {{{ sqrt(x)-sqrt(x-20)=10}}} I know the answer is 36, but I'm not sure how to get the answer.

SOLUTION: {{{ sqrt(x)-sqrt(x-20)=10}}} I know the answer is 36, but I'm not sure how to get the answer.

Algebra.Com

Question 651887:
I know the answer is 36, but I'm not sure how to get the answer.
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

if the answer is , than ...->...->..->..,,,which is not true
you probably made mistake using minus sign
with plus sign you will get:

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