Solve for x
x>-6
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3x>-21+3
Add 3 to both sides.
3x>-18
Add -21 and 3 to get -18.
x>\frac{-18}{3}
Divide both sides by 3. Since 3 is positive, the inequality direction remains the same.
x>-6
Divide -18 by 3 to get -6.
Examples
Quadratic equation
{ 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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