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sqrt(b+15) = sqrt(3b+1). what does b equal? need help asap! thanks so much

 Oct 26, 2015
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sqrt(b+15) = sqrt(3b+1). what does b equal? need help asap! thanks so much

 

Solve for b:
sqrt(b+15) = sqrt(3 b+1)

Square both sides:
b+15 = 3 b+1

Subtract 3 b+15 from both sides:
-2 b = -14

Divide both sides by -2:
Answer: | 
| b = 7

 Oct 26, 2015

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