Solve for n
n=2x
Solve for x
x=\frac{n}{2}
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3n=6x
Multiply both sides of the equation by 2.
\frac{3n}{3}=\frac{6x}{3}
Divide both sides by 3.
n=\frac{6x}{3}
Dividing by 3 undoes the multiplication by 3.
n=2x
Divide 6x by 3.
3n=6x
Multiply both sides of the equation by 2.
6x=3n
Swap sides so that all variable terms are on the left hand side.
\frac{6x}{6}=\frac{3n}{6}
Divide both sides by 6.
x=\frac{3n}{6}
Dividing by 6 undoes the multiplication by 6.
x=\frac{n}{2}
Divide 3n by 6.
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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
\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
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