Solve for x
x=\frac{1}{12}\approx 0.083333333
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3x-5=3x-12x-4
Subtract 9 from 4 to get -5.
3x-5=-9x-4
Combine 3x and -12x to get -9x.
3x-5+9x=-4
Add 9x to both sides.
12x-5=-4
Combine 3x and 9x to get 12x.
12x=-4+5
Add 5 to both sides.
12x=1
Add -4 and 5 to get 1.
x=\frac{1}{12}
Divide both sides by 12.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
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}