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OpenStudy (anonymous):
What is the square root of u - 15 = 7
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OpenStudy (zzr0ck3r):
\(\sqrt{u-15}=7\) Square both sides \(\sqrt{u-15}^2=7^2=49\) giving \(u-15=49\)
OpenStudy (tkhunny):
It's an equation using the variable 'u'. What else would it be?
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