Solve for y
y=\frac{x-3}{9}
Solve for x
x=9y+3
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3+9y=x
Swap sides so that all variable terms are on the left hand side.
9y=x-3
Subtract 3 from both sides.
\frac{9y}{9}=\frac{x-3}{9}
Divide both sides by 9.
y=\frac{x-3}{9}
Dividing by 9 undoes the multiplication by 9.
y=\frac{x}{9}-\frac{1}{3}
Divide x-3 by 9.
Examples
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Arithmetic
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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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