n+8n=8(n-4)+4(n-4)

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


Simplifying
n + 8n = 8(n + -4) + 4(n + -4)

Combine like terms: n + 8n = 9n
9n = 8(n + -4) + 4(n + -4)

Reorder the terms:
9n = 8(-4 + n) + 4(n + -4)
9n = (-4 * 8 + n * 8) + 4(n + -4)
9n = (-32 + 8n) + 4(n + -4)

Reorder the terms:
9n = -32 + 8n + 4(-4 + n)
9n = -32 + 8n + (-4 * 4 + n * 4)
9n = -32 + 8n + (-16 + 4n)

Reorder the terms:
9n = -32 + -16 + 8n + 4n

Combine like terms: -32 + -16 = -48
9n = -48 + 8n + 4n

Combine like terms: 8n + 4n = 12n
9n = -48 + 12n

Solving
9n = -48 + 12n

Solving for variable 'n'.

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

Add '-12n' to each side of the equation.
9n + -12n = -48 + 12n + -12n

Combine like terms: 9n + -12n = -3n
-3n = -48 + 12n + -12n

Combine like terms: 12n + -12n = 0
-3n = -48 + 0
-3n = -48

Divide each side by '-3'.
n = 16

Simplifying
n = 16

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