Solve for x
x=\frac{y-3}{3}
Solve for y
y=3\left(x+1\right)
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-3x=3-y
Subtract y from both sides.
\frac{-3x}{-3}=\frac{3-y}{-3}
Divide both sides by -3.
x=\frac{3-y}{-3}
Dividing by -3 undoes the multiplication by -3.
x=\frac{y}{3}-1
Divide 3-y by -3.
y=3+3x
Add 3x to both sides.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
Arithmetic
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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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