Solve for x

x=4-2y

Solve for y

y=-\frac{x}{2}+2

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4x=16-8y

Subtract 8y from both sides.

\frac{4x}{4}=\frac{16-8y}{4}

Divide both sides by 4.

x=\frac{16-8y}{4}

Dividing by 4 undoes the multiplication by 4.

x=4-2y

Divide 16-8y by 4.

8y=16-4x

Subtract 4x from both sides.

\frac{8y}{8}=\frac{16-4x}{8}

Divide both sides by 8.

y=\frac{16-4x}{8}

Dividing by 8 undoes the multiplication by 8.

y=-\frac{x}{2}+2

Divide 16-4x by 8.

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

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