Solve for x
x>-\frac{5}{3}
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18x>-9-21
Subtract 21 from both sides.
18x>-30
Subtract 21 from -9 to get -30.
x>\frac{-30}{18}
Divide both sides by 18. Since 18 is positive, the inequality direction remains the same.
x>-\frac{5}{3}
Reduce the fraction \frac{-30}{18} to lowest terms by extracting and canceling out 6.
Examples
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y = 3x + 4
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Matrix
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Simultaneous equation
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Limits
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