Solve for x
x=2
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2+9x-3=4x+9
Use the distributive property to multiply 3 by 3x-1.
-1+9x=4x+9
Subtract 3 from 2 to get -1.
-1+9x-4x=9
Subtract 4x from both sides.
-1+5x=9
Combine 9x and -4x to get 5x.
5x=9+1
Add 1 to both sides.
5x=10
Add 9 and 1 to get 10.
x=\frac{10}{5}
Divide both sides by 5.
x=2
Divide 10 by 5 to get 2.
Examples
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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
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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