What is the answer to -(4x)/(x+3)+8x=7 ?

The answer to -(4x)/(x+3)+8x=7 is x=1,x=-21/8

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-(4x)/(x+3)+8x=7

- \frac{4 x}{x + 3} + 8 x = 7

x = 1, x = - \frac{21}{8}

Decimal Notation

x = 1, x = - 2.625

Solution steps

- \frac{4 x}{x + 3} + 8 x = 7

Multiply both sides by

x + 3

- 4 x + 8 x (x + 3) = 7 (x + 3)

Solve

- 4 x + 8 x (x + 3) = 7 (x + 3) : x = 1, x = - \frac{21}{8}

x = 1, x = - \frac{21}{8}

Verify Solutions

Find undefined (singularity) points:

x = - 3

Combine undefined points with solutions:

x = 1, x = - \frac{21}{8}

\frac{3}{x - 9} + 1 = \frac{4 x}{x - 9}

2 x - \frac{400}{x ^{2}} = 0

y, x = \frac{y + 1}{y + 2}

\frac{1}{3 - x} = \frac{x ^{2} - 9}{( x - 3 ) ^{2}}

5 - \frac{900}{x ^{2}} = 0

What is the answer to -(4x)/(x+3)+8x=7 ?
The answer to -(4x)/(x+3)+8x=7 is x=1,x=-21/8
Solve for x: -(4x)/(x+3)+8x=7
The solution is x=1,x=-21/8