9-5n=12-1(6n+7)

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Solution for 9-5n=12-1(6n+7) equation:


Simplifying
9 + -5n = 12 + -1(6n + 7)

Reorder the terms:
9 + -5n = 12 + -1(7 + 6n)
9 + -5n = 12 + (7 * -1 + 6n * -1)
9 + -5n = 12 + (-7 + -6n)

Combine like terms: 12 + -7 = 5
9 + -5n = 5 + -6n

Solving
9 + -5n = 5 + -6n

Solving for variable 'n'.

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

Add '6n' to each side of the equation.
9 + -5n + 6n = 5 + -6n + 6n

Combine like terms: -5n + 6n = 1n
9 + 1n = 5 + -6n + 6n

Combine like terms: -6n + 6n = 0
9 + 1n = 5 + 0
9 + 1n = 5

Add '-9' to each side of the equation.
9 + -9 + 1n = 5 + -9

Combine like terms: 9 + -9 = 0
0 + 1n = 5 + -9
1n = 5 + -9

Combine like terms: 5 + -9 = -4
1n = -4

Divide each side by '1'.
n = -4

Simplifying
n = -4

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