-3(7n+7n+14)=5(-7n-7)-21

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Solution for -3(7n+7n+14)=5(-7n-7)-21 equation:


Simplifying
-3(7n + 7n + 14) = 5(-7n + -7) + -21

Reorder the terms:
-3(14 + 7n + 7n) = 5(-7n + -7) + -21

Combine like terms: 7n + 7n = 14n
-3(14 + 14n) = 5(-7n + -7) + -21
(14 * -3 + 14n * -3) = 5(-7n + -7) + -21
(-42 + -42n) = 5(-7n + -7) + -21

Reorder the terms:
-42 + -42n = 5(-7 + -7n) + -21
-42 + -42n = (-7 * 5 + -7n * 5) + -21
-42 + -42n = (-35 + -35n) + -21

Reorder the terms:
-42 + -42n = -35 + -21 + -35n

Combine like terms: -35 + -21 = -56
-42 + -42n = -56 + -35n

Solving
-42 + -42n = -56 + -35n

Solving for variable 'n'.

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

Add '35n' to each side of the equation.
-42 + -42n + 35n = -56 + -35n + 35n

Combine like terms: -42n + 35n = -7n
-42 + -7n = -56 + -35n + 35n

Combine like terms: -35n + 35n = 0
-42 + -7n = -56 + 0
-42 + -7n = -56

Add '42' to each side of the equation.
-42 + 42 + -7n = -56 + 42

Combine like terms: -42 + 42 = 0
0 + -7n = -56 + 42
-7n = -56 + 42

Combine like terms: -56 + 42 = -14
-7n = -14

Divide each side by '-7'.
n = 2

Simplifying
n = 2

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