-6+n-4n=-21

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Solution for -6+n-4n=-21 equation: 


Simplifying
-6 + n + -4n = -21

Combine like terms: n + -4n = -3n
-6 + -3n = -21

Solving
-6 + -3n = -21

Solving for variable 'n'.

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

Add '6' to each side of the equation.
-6 + 6 + -3n = -21 + 6

Combine like terms: -6 + 6 = 0
0 + -3n = -21 + 6
-3n = -21 + 6

Combine like terms: -21 + 6 = -15
-3n = -15

Divide each side by '-3'.
n = 5

Simplifying
n = 5

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