Solve for x
x=2
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-4+10x-4-7x=7-2x-4x+3
Subtract 3 from -1 to get -4.
-8+10x-7x=7-2x-4x+3
Subtract 4 from -4 to get -8.
-8+3x=7-2x-4x+3
Combine 10x and -7x to get 3x.
-8+3x=7-6x+3
Combine -2x and -4x to get -6x.
-8+3x=10-6x
Add 7 and 3 to get 10.
-8+3x+6x=10
Add 6x to both sides.
-8+9x=10
Combine 3x and 6x to get 9x.
9x=10+8
Add 8 to both sides.
9x=18
Add 10 and 8 to get 18.
x=\frac{18}{9}
Divide both sides by 9.
x=2
Divide 18 by 9 to get 2.
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}