7(n+3)+3n=21

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


Simplifying
7(n + 3) + 3n = 21

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

Combine like terms: 7n + 3n = 10n
21 + 10n = 21

Add '-21' to each side of the equation.
21 + -21 + 10n = 21 + -21

Combine like terms: 21 + -21 = 0
0 + 10n = 21 + -21
10n = 21 + -21

Combine like terms: 21 + -21 = 0
10n = 0

Solving
10n = 0

Solving for variable 'n'.

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

Divide each side by '10'.
n = 0.0

Simplifying
n = 0.0

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