Solve for x
x=-2
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7x-11-3x=-19
Subtract 3x from both sides.
4x-11=-19
Combine 7x and -3x to get 4x.
4x=-19+11
Add 11 to both sides.
4x=-8
Add -19 and 11 to get -8.
x=\frac{-8}{4}
Divide both sides by 4.
x=-2
Divide -8 by 4 to get -2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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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
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Limits
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