4n-5n+3(n+4)=0

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Solution for 4n-5n+3(n+4)=0 equation:


Simplifying
4n + -5n + 3(n + 4) = 0

Reorder the terms:
4n + -5n + 3(4 + n) = 0
4n + -5n + (4 * 3 + n * 3) = 0
4n + -5n + (12 + 3n) = 0

Reorder the terms:
12 + 4n + -5n + 3n = 0

Combine like terms: 4n + -5n = -1n
12 + -1n + 3n = 0

Combine like terms: -1n + 3n = 2n
12 + 2n = 0

Solving
12 + 2n = 0

Solving for variable 'n'.

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

Add '-12' to each side of the equation.
12 + -12 + 2n = 0 + -12

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

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

Divide each side by '2'.
n = -6

Simplifying
n = -6

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