Solve for x
x=-\left(x_{2}+9\right)
Solve for x_2
x_{2}=-\left(x+9\right)
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9+x_{2}+x=0
Swap sides so that all variable terms are on the left hand side.
x_{2}+x=-9
Subtract 9 from both sides. Anything subtracted from zero gives its negation.
x=-9-x_{2}
Subtract x_{2} from both sides.
9+x_{2}+x=0
Swap sides so that all variable terms are on the left hand side.
x_{2}+x=-9
Subtract 9 from both sides. Anything subtracted from zero gives its negation.
x_{2}=-9-x
Subtract x from both sides.
Examples
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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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