Solve for K

K=\frac{4q}{9}

Solve for q

q=\frac{9K}{4}

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q=\frac{K\times 2\times 9}{8}

Calculate 3 to the power of 2 and get 9.

q=\frac{K\times 18}{8}

Multiply 2 and 9 to get 18.

q=K\times \frac{9}{4}

Divide K\times 18 by 8 to get K\times \frac{9}{4}.

K\times \frac{9}{4}=q

Swap sides so that all variable terms are on the left hand side.

\frac{9}{4}K=q

The equation is in standard form.

\frac{\frac{9}{4}K}{\frac{9}{4}}=\frac{q}{\frac{9}{4}}

Divide both sides of the equation by \frac{9}{4}, which is the same as multiplying both sides by the reciprocal of the fraction.

K=\frac{q}{\frac{9}{4}}

Dividing by \frac{9}{4} undoes the multiplication by \frac{9}{4}.

K=\frac{4q}{9}

Divide q by \frac{9}{4} by multiplying q by the reciprocal of \frac{9}{4}.

q=\frac{K\times 2\times 9}{8}

Calculate 3 to the power of 2 and get 9.

q=\frac{K\times 18}{8}

Multiply 2 and 9 to get 18.

q=K\times \frac{9}{4}

Divide K\times 18 by 8 to get K\times \frac{9}{4}.

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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }

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