-8-7=5n-4(3+n)

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Solution for -8-7=5n-4(3+n) equation:


Simplifying
-8 + -7 = 5n + -4(3 + n)

Combine like terms: -8 + -7 = -15
-15 = 5n + -4(3 + n)
-15 = 5n + (3 * -4 + n * -4)
-15 = 5n + (-12 + -4n)

Reorder the terms:
-15 = -12 + 5n + -4n

Combine like terms: 5n + -4n = 1n
-15 = -12 + 1n

Solving
-15 = -12 + 1n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
-15 + -1n = -12 + 1n + -1n

Combine like terms: 1n + -1n = 0
-15 + -1n = -12 + 0
-15 + -1n = -12

Add '15' to each side of the equation.
-15 + 15 + -1n = -12 + 15

Combine like terms: -15 + 15 = 0
0 + -1n = -12 + 15
-1n = -12 + 15

Combine like terms: -12 + 15 = 3
-1n = 3

Divide each side by '-1'.
n = -3

Simplifying
n = -3

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