Solve for x
x=-18
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-3x=2\left(9-x\right)
Multiply both sides of the equation by 6, the least common multiple of 2,3.
-3x=18-2x
Use the distributive property to multiply 2 by 9-x.
-3x+2x=18
Add 2x to both sides.
-x=18
Combine -3x and 2x to get -x.
x=-18
Multiply both sides by -1.
Examples
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Linear equation
y = 3x + 4
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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
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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