Solve for x
x>\frac{45}{2}
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x\left(-2\right)+6x>90
Combine 2x and -x to get x.
4x>90
Combine x\left(-2\right) and 6x to get 4x.
x>\frac{90}{4}
Divide both sides by 4. Since 4 is positive, the inequality direction remains the same.
x>\frac{45}{2}
Reduce the fraction \frac{90}{4} to lowest terms by extracting and canceling out 2.
Examples
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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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