Solve for x
x=\frac{y+1}{3}
Solve for y
y=3x-1
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6x-2=2y
Add 2y to both sides. Anything plus zero gives itself.
6x=2y+2
Add 2 to both sides.
\frac{6x}{6}=\frac{2y+2}{6}
Divide both sides by 6.
x=\frac{2y+2}{6}
Dividing by 6 undoes the multiplication by 6.
x=\frac{y+1}{3}
Divide 2+2y by 6.
-2y-2=-6x
Subtract 6x from both sides. Anything subtracted from zero gives its negation.
-2y=-6x+2
Add 2 to both sides.
-2y=2-6x
The equation is in standard form.
\frac{-2y}{-2}=\frac{2-6x}{-2}
Divide both sides by -2.
y=\frac{2-6x}{-2}
Dividing by -2 undoes the multiplication by -2.
y=3x-1
Divide -6x+2 by -2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
Arithmetic
699 * 533
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
\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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}