n+8n=8(n-4)+4(n-9)

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Solution for n+8n=8(n-4)+4(n-9) equation:


Simplifying
n + 8n = 8(n + -4) + 4(n + -9)

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

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

Reorder the terms:
9n = -32 + 8n + 4(-9 + n)
9n = -32 + 8n + (-9 * 4 + n * 4)
9n = -32 + 8n + (-36 + 4n)

Reorder the terms:
9n = -32 + -36 + 8n + 4n

Combine like terms: -32 + -36 = -68
9n = -68 + 8n + 4n

Combine like terms: 8n + 4n = 12n
9n = -68 + 12n

Solving
9n = -68 + 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 = -68 + 12n + -12n

Combine like terms: 9n + -12n = -3n
-3n = -68 + 12n + -12n

Combine like terms: 12n + -12n = 0
-3n = -68 + 0
-3n = -68

Divide each side by '-3'.
n = 22.66666667

Simplifying
n = 22.66666667

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