What is the answer to (21)/(4m+1)=3 ?

The answer to (21)/(4m+1)=3 is m= 3/2

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(21)/(4m+1)=3

\frac{21}{4 m + 1} = 3

m = \frac{3}{2}

Decimal Notation

m = 1.5

Solution steps

\frac{21}{4 m + 1} = 3

Multiply both sides by

4 m + 1

21 = 3 (4 m + 1)

Switch sides

3 (4 m + 1) = 21

Divide both sides by

3

4 m + 1 = 7

Move

1

to the right side

4 m = 6

Divide both sides by

4

m = \frac{3}{2}

Verify Solutions

Find undefined (singularity) points:

m = - \frac{1}{4}

Combine undefined points with solutions:

m = \frac{3}{2}

x, y = - \frac{7}{2 x + 3}

\frac{2}{x ^{2}} = 3

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

\frac{( x + 1 ) !}{x !} = 0

\frac{x ( x - 4 )}{2 ( x - 2 ) ^{2}} = 0