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Popular >

sqrt(22-2r)=r-7

Solution

22 - 2 r = r - 7

Solution

r = 9

Solution steps

22 - 2 r = r - 7

Square both sides:

22 - 2 r = r^{2} - 14 r + 49

22 - 2 r = r^{2} - 14 r + 49

Solve

22 - 2 r = r^{2} - 14 r + 49 : r = 9, r = 3

r = 9, r = 3

Verify Solutions:

r = 9

True

, r = 3

False

The solution is

r = 9

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3 x + 6 - x + 3 = 1

sqrt(x)=x^{-1/2}

x = x^{- \frac{1}{2}}

- x + 30 = x

Frequently Asked Questions (FAQ)

What is the answer to sqrt(22-2r)=r-7 ?
The answer to sqrt(22-2r)=r-7 is r=9
Solve for r: sqrt(22-2r)=r-7
The solution is r=9