12+2n=7n-3(n-4)

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Solution for 12+2n=7n-3(n-4) equation:


Simplifying
12 + 2n = 7n + -3(n + -4)

Reorder the terms:
12 + 2n = 7n + -3(-4 + n)
12 + 2n = 7n + (-4 * -3 + n * -3)
12 + 2n = 7n + (12 + -3n)

Reorder the terms:
12 + 2n = 12 + 7n + -3n

Combine like terms: 7n + -3n = 4n
12 + 2n = 12 + 4n

Add '-12' to each side of the equation.
12 + -12 + 2n = 12 + -12 + 4n

Combine like terms: 12 + -12 = 0
0 + 2n = 12 + -12 + 4n
2n = 12 + -12 + 4n

Combine like terms: 12 + -12 = 0
2n = 0 + 4n
2n = 4n

Solving
2n = 4n

Solving for variable 'n'.

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

Add '-4n' to each side of the equation.
2n + -4n = 4n + -4n

Combine like terms: 2n + -4n = -2n
-2n = 4n + -4n

Combine like terms: 4n + -4n = 0
-2n = 0

Divide each side by '-2'.
n = 0

Simplifying
n = 0

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