7(n+9)+3(n-3)=

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Solution for 7(n+9)+3(n-3)= equation:


Simplifying
7(n + 9) + 3(n + -3) = 0

Reorder the terms:
7(9 + n) + 3(n + -3) = 0
(9 * 7 + n * 7) + 3(n + -3) = 0
(63 + 7n) + 3(n + -3) = 0

Reorder the terms:
63 + 7n + 3(-3 + n) = 0
63 + 7n + (-3 * 3 + n * 3) = 0
63 + 7n + (-9 + 3n) = 0

Reorder the terms:
63 + -9 + 7n + 3n = 0

Combine like terms: 63 + -9 = 54
54 + 7n + 3n = 0

Combine like terms: 7n + 3n = 10n
54 + 10n = 0

Solving
54 + 10n = 0

Solving for variable 'n'.

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

Add '-54' to each side of the equation.
54 + -54 + 10n = 0 + -54

Combine like terms: 54 + -54 = 0
0 + 10n = 0 + -54
10n = 0 + -54

Combine like terms: 0 + -54 = -54
10n = -54

Divide each side by '10'.
n = -5.4

Simplifying
n = -5.4

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