Solve for x
x<7
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2x-4x>-14
Subtract 4x from both sides.
-2x>-14
Combine 2x and -4x to get -2x.
x<\frac{-14}{-2}
Divide both sides by -2. Since -2 is negative, the inequality direction is changed.
x<7
Divide -14 by -2 to get 7.
Examples
Quadratic equation
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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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