Solve for y
y=\frac{5x-75}{4}
Solve for x
x=\frac{4y}{5}+15
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-0.8y=15-x
Subtract x from both sides.
\frac{-0.8y}{-0.8}=\frac{15-x}{-0.8}
Divide both sides of the equation by -0.8, which is the same as multiplying both sides by the reciprocal of the fraction.
y=\frac{15-x}{-0.8}
Dividing by -0.8 undoes the multiplication by -0.8.
y=\frac{5x-75}{4}
Divide 15-x by -0.8 by multiplying 15-x by the reciprocal of -0.8.
x=15+0.8y
Add 0.8y to both sides.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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