3(-4n-n)=21

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Solution for 3(-4n-n)=21 equation: 


Simplifying
3(-4n + -1n) = 21

Combine like terms: -4n + -1n = -5n
3(-5n) = 21

Remove parenthesis around (-5n)
3 * -5n = 21

Multiply 3 * -5
-15n = 21

Solving
-15n = 21

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Divide each side by '-15'.
n = -1.4

Simplifying
n = -1.4

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