9(2n+7)=12-(5n-9)+16n

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Solution for 9(2n+7)=12-(5n-9)+16n equation:


Simplifying
9(2n + 7) = 12 + -1(5n + -9) + 16n

Reorder the terms:
9(7 + 2n) = 12 + -1(5n + -9) + 16n
(7 * 9 + 2n * 9) = 12 + -1(5n + -9) + 16n
(63 + 18n) = 12 + -1(5n + -9) + 16n

Reorder the terms:
63 + 18n = 12 + -1(-9 + 5n) + 16n
63 + 18n = 12 + (-9 * -1 + 5n * -1) + 16n
63 + 18n = 12 + (9 + -5n) + 16n

Combine like terms: 12 + 9 = 21
63 + 18n = 21 + -5n + 16n

Combine like terms: -5n + 16n = 11n
63 + 18n = 21 + 11n

Solving
63 + 18n = 21 + 11n

Solving for variable 'n'.

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

Add '-11n' to each side of the equation.
63 + 18n + -11n = 21 + 11n + -11n

Combine like terms: 18n + -11n = 7n
63 + 7n = 21 + 11n + -11n

Combine like terms: 11n + -11n = 0
63 + 7n = 21 + 0
63 + 7n = 21

Add '-63' to each side of the equation.
63 + -63 + 7n = 21 + -63

Combine like terms: 63 + -63 = 0
0 + 7n = 21 + -63
7n = 21 + -63

Combine like terms: 21 + -63 = -42
7n = -42

Divide each side by '7'.
n = -6

Simplifying
n = -6

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