What is the answer to (20)/x-2x=-3 ?

The answer to (20)/x-2x=-3 is x=-5/2 ,x=4

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(20)/x-2x=-3

\frac{20}{x} - 2 x = - 3

x = - \frac{5}{2}, x = 4

Decimal Notation

x = - 2.5, x = 4

Solution steps

\frac{20}{x} - 2 x = - 3

Multiply both sides by

x

20 - 2 x^{2} = - 3 x

Solve

20 - 2 x^{2} = - 3 x : x = - \frac{5}{2}, x = 4

x = - \frac{5}{2}, x = 4

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = - \frac{5}{2}, x = 4

\frac{3}{2 x ^{2} - 4 x + 2} = 60

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

a (x) = \frac{3 x - 3}{2 x + 3}, a (- 3)

t, n = \frac{p v}{r t}

y^{3} \frac{( 1 - y )}{2 y} = - 16