What is the answer to v/2 = 8/v ?

The answer to v/2 = 8/v is v=4,v=-4

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v/2 = 8/v

\frac{v}{2} = \frac{8}{v}

v = 4, v = - 4

Solution steps

\frac{v}{2} = \frac{8}{v}

Cross multiply

v^{2} = 16

Solve

v^{2} = 16 : v = 4, v = - 4

v = 4, v = - 4

Verify Solutions

Find undefined (singularity) points:

v = 0

Combine undefined points with solutions:

v = 4, v = - 4

54 \frac{m}{s} = \frac{km}{s}

\frac{1}{3 ( x + 1 )} = \frac{x + 1}{2}

\frac{6}{2 x} = 1

L, a = \frac{r}{2 L}

10 (\frac{910}{( 910 + x )}) = 5.6