3(-3n-9)=21

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Solution for 3(-3n-9)=21 equation:


Simplifying
3(-3n + -9) = 21

Reorder the terms:
3(-9 + -3n) = 21
(-9 * 3 + -3n * 3) = 21
(-27 + -9n) = 21

Solving
-27 + -9n = 21

Solving for variable 'n'.

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

Add '27' to each side of the equation.
-27 + 27 + -9n = 21 + 27

Combine like terms: -27 + 27 = 0
0 + -9n = 21 + 27
-9n = 21 + 27

Combine like terms: 21 + 27 = 48
-9n = 48

Divide each side by '-9'.
n = -5.333333333

Simplifying
n = -5.333333333

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