Solve for x
x=\frac{5\left(y+3\right)}{2}
Solve for y
y=\frac{2x}{5}-3
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2x-15=5y
Swap sides so that all variable terms are on the left hand side.
2x=5y+15
Add 15 to both sides.
\frac{2x}{2}=\frac{5y+15}{2}
Divide both sides by 2.
x=\frac{5y+15}{2}
Dividing by 2 undoes the multiplication by 2.
5y=2x-15
The equation is in standard form.
\frac{5y}{5}=\frac{2x-15}{5}
Divide both sides by 5.
y=\frac{2x-15}{5}
Dividing by 5 undoes the multiplication by 5.
y=\frac{2x}{5}-3
Divide 2x-15 by 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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