What is the answer to (21)/(x+14)= 4/5 ?

The answer to (21)/(x+14)= 4/5 is x= 49/4

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(21)/(x+14)= 4/5

\frac{21}{x + 14} = \frac{4}{5}

x = \frac{49}{4}

Decimal Notation

x = 12.25

Solution steps

\frac{21}{x + 14} = \frac{4}{5}

Cross multiply

105 = (x + 14) \cdot 4

Switch sides

(x + 14) \cdot 4 = 105

Divide both sides by

4

x + 14 = \frac{105}{4}

Move

14

to the right side

x = \frac{49}{4}

Verify Solutions

Find undefined (singularity) points:

x = - 14

Combine undefined points with solutions:

x = \frac{49}{4}

- \frac{3}{x - 5} = \frac{5 x}{19}

\frac{1}{x - 2} = - \frac{1}{4}

x, z = \frac{m}{x}

\frac{4}{x - 3} + \frac{x}{2} = - 3

m = \frac{2 - 2 C n ^{4}}{1 + C n ^{4}}

What is the answer to (21)/(x+14)= 4/5 ?
The answer to (21)/(x+14)= 4/5 is x= 49/4
Solve for x: (21)/(x+14)= 4/5
The solution is x= 49/4