Solve for x
x=-\frac{4y}{15}
Solve for y
y=-\frac{15x}{4}
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15x=-4y
Subtract 4y from both sides. Anything subtracted from zero gives its negation.
\frac{15x}{15}=-\frac{4y}{15}
Divide both sides by 15.
x=-\frac{4y}{15}
Dividing by 15 undoes the multiplication by 15.
4y=-15x
Subtract 15x from both sides. Anything subtracted from zero gives its negation.
\frac{4y}{4}=-\frac{15x}{4}
Divide both sides by 4.
y=-\frac{15x}{4}
Dividing by 4 undoes the multiplication by 4.
Examples
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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