Solve for n
n=-\frac{1}{5}=-0.2
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5n-20=-\left(4\times 5+1\right)
Multiply both sides of the equation by 5.
5n-20=-\left(20+1\right)
Multiply 4 and 5 to get 20.
5n-20=-21
Add 20 and 1 to get 21.
5n=-21+20
Add 20 to both sides.
5n=-1
Add -21 and 20 to get -1.
n=\frac{-1}{5}
Divide both sides by 5.
n=-\frac{1}{5}
Fraction \frac{-1}{5} can be rewritten as -\frac{1}{5} by extracting the negative sign.
Examples
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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