Solve for x
x\geq \frac{9}{2}
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8x-5-4x\geq 13
Subtract 4x from both sides.
4x-5\geq 13
Combine 8x and -4x to get 4x.
4x\geq 13+5
Add 5 to both sides.
4x\geq 18
Add 13 and 5 to get 18.
x\geq \frac{18}{4}
Divide both sides by 4. Since 4 is positive, the inequality direction remains the same.
x\geq \frac{9}{2}
Reduce the fraction \frac{18}{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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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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