Solve for x
x=\frac{7-5y}{3}
Solve for y
y=\frac{7-3x}{5}
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3x=7-5y
Subtract 5y from both sides.
\frac{3x}{3}=\frac{7-5y}{3}
Divide both sides by 3.
x=\frac{7-5y}{3}
Dividing by 3 undoes the multiplication by 3.
5y=7-3x
Subtract 3x from both sides.
\frac{5y}{5}=\frac{7-3x}{5}
Divide both sides by 5.
y=\frac{7-3x}{5}
Dividing by 5 undoes the multiplication by 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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