Solve for x
x\leq \frac{1}{2}
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-4x\geq 10-12
Subtract 12 from both sides.
-4x\geq -2
Subtract 12 from 10 to get -2.
x\leq \frac{-2}{-4}
Divide both sides by -4. Since -4 is negative, the inequality direction is changed.
x\leq \frac{1}{2}
Reduce the fraction \frac{-2}{-4} to lowest terms by extracting and canceling out -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.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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