What is the answer to (28)/b+9=16 ?

The answer to (28)/b+9=16 is b=4

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(28)/b+9=16

\frac{28}{b} + 9 = 16

b = 4

Solution steps

\frac{28}{b} + 9 = 16

Move

9

to the right side

\frac{28}{b} = 7

Multiply both sides by

b

28 = 7 b

Switch sides

7 b = 28

Divide both sides by

7

b = 4

Verify Solutions

Find undefined (singularity) points:

b = 0

Combine undefined points with solutions:

b = 4

\frac{π}{2} = \frac{2 π}{b}

5 = \frac{x ^{2} - 4}{x + 16}

\frac{8}{5 x - 4} = \frac{6}{x + 5}

\frac{x}{1 - x ^{2}} = 0

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