-15=-3(n+7)

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Solution for -15=-3(n+7) equation:


Simplifying
-15 = -3(n + 7)

Reorder the terms:
-15 = -3(7 + n)
-15 = (7 * -3 + n * -3)
-15 = (-21 + -3n)

Solving
-15 = -21 + -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
-15 + 3n = -21 + -3n + 3n

Combine like terms: -3n + 3n = 0
-15 + 3n = -21 + 0
-15 + 3n = -21

Add '15' to each side of the equation.
-15 + 15 + 3n = -21 + 15

Combine like terms: -15 + 15 = 0
0 + 3n = -21 + 15
3n = -21 + 15

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

Divide each side by '3'.
n = -2

Simplifying
n = -2

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