-3(3n+3)=21+6n

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Solution for -3(3n+3)=21+6n equation:


Simplifying
-3(3n + 3) = 21 + 6n

Reorder the terms:
-3(3 + 3n) = 21 + 6n
(3 * -3 + 3n * -3) = 21 + 6n
(-9 + -9n) = 21 + 6n

Solving
-9 + -9n = 21 + 6n

Solving for variable 'n'.

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

Add '-6n' to each side of the equation.
-9 + -9n + -6n = 21 + 6n + -6n

Combine like terms: -9n + -6n = -15n
-9 + -15n = 21 + 6n + -6n

Combine like terms: 6n + -6n = 0
-9 + -15n = 21 + 0
-9 + -15n = 21

Add '9' to each side of the equation.
-9 + 9 + -15n = 21 + 9

Combine like terms: -9 + 9 = 0
0 + -15n = 21 + 9
-15n = 21 + 9

Combine like terms: 21 + 9 = 30
-15n = 30

Divide each side by '-15'.
n = -2

Simplifying
n = -2

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