Solve for x
x=\frac{y}{16}
Solve for y
y=16x
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5x+2y=21x+y
Combine 20x and x to get 21x.
5x+2y-21x=y
Subtract 21x from both sides.
-16x+2y=y
Combine 5x and -21x to get -16x.
-16x=y-2y
Subtract 2y from both sides.
-16x=-y
Combine y and -2y to get -y.
\frac{-16x}{-16}=-\frac{y}{-16}
Divide both sides by -16.
x=-\frac{y}{-16}
Dividing by -16 undoes the multiplication by -16.
x=\frac{y}{16}
Divide -y by -16.
5x+2y=21x+y
Combine 20x and x to get 21x.
5x+2y-y=21x
Subtract y from both sides.
5x+y=21x
Combine 2y and -y to get y.
y=21x-5x
Subtract 5x from both sides.
y=16x
Combine 21x and -5x to get 16x.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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