Solve for n
n\leq 5
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n\leq \frac{-20}{-4}
Divide both sides by -4. Since -4 is negative, the inequality direction is changed.
n\leq 5
Divide -20 by -4 to get 5.
Examples
Quadratic equation
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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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