-12-4n-13=-9(-n-16)

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Solution for -12-4n-13=-9(-n-16) equation: 


Simplifying
-12 + -4n + -13 = -9(-1n + -16)

Reorder the terms:
-12 + -13 + -4n = -9(-1n + -16)

Combine like terms: -12 + -13 = -25
-25 + -4n = -9(-1n + -16)

Reorder the terms:
-25 + -4n = -9(-16 + -1n)
-25 + -4n = (-16 * -9 + -1n * -9)
-25 + -4n = (144 + 9n)

Solving
-25 + -4n = 144 + 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
-25 + -4n + -9n = 144 + 9n + -9n

Combine like terms: -4n + -9n = -13n
-25 + -13n = 144 + 9n + -9n

Combine like terms: 9n + -9n = 0
-25 + -13n = 144 + 0
-25 + -13n = 144

Add '25' to each side of the equation.
-25 + 25 + -13n = 144 + 25

Combine like terms: -25 + 25 = 0
0 + -13n = 144 + 25
-13n = 144 + 25

Combine like terms: 144 + 25 = 169
-13n = 169

Divide each side by '-13'.
n = -13

Simplifying
n = -13

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