What is the answer to 900=(x*1200)/(x+1200) ?

The answer to 900=(x*1200)/(x+1200) is x=3600

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900=(x*1200)/(x+1200)

900 = \frac{x \cdot 1200}{x + 1200}

x = 3600

Solution steps

900 = \frac{x \cdot 1200}{x + 1200}

Multiply both sides by

x + 1200

900 (x + 1200) = 1200 x

Expand

900 (x + 1200) : 900 x + 1080000

900 x + 1080000 = 1200 x

Move

1080000

to the right side

900 x = 1200 x - 1080000

Move

1200 x

to the left side

- 300 x = - 1080000

Divide both sides by

- 300

x = 3600

Verify Solutions

Find undefined (singularity) points:

x = - 1200

Combine undefined points with solutions:

x = 3600

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

\frac{4}{9} = \frac{13}{x}

\frac{3 + 4 x}{2 x + 9} = - \frac{2}{5}

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

8 + (\frac{1}{x} - 2) = 16

What is the answer to 900=(x*1200)/(x+1200) ?
The answer to 900=(x*1200)/(x+1200) is x=3600
Solve for x: 900=(x*1200)/(x+1200)
The solution is x=3600