6n+9=-3n-21-6n

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Solution for 6n+9=-3n-21-6n equation:


Simplifying
6n + 9 = -3n + -21 + -6n

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

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

Combine like terms: -3n + -6n = -9n
9 + 6n = -21 + -9n

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

Solving for variable 'n'.

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

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

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

Combine like terms: -9n + 9n = 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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