4n-5(n-2n+3)=3n+12

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Solution for 4n-5(n-2n+3)=3n+12 equation:


Simplifying
4n + -5(n + -2n + 3) = 3n + 12

Reorder the terms:
4n + -5(3 + n + -2n) = 3n + 12

Combine like terms: n + -2n = -1n
4n + -5(3 + -1n) = 3n + 12
4n + (3 * -5 + -1n * -5) = 3n + 12
4n + (-15 + 5n) = 3n + 12

Reorder the terms:
-15 + 4n + 5n = 3n + 12

Combine like terms: 4n + 5n = 9n
-15 + 9n = 3n + 12

Reorder the terms:
-15 + 9n = 12 + 3n

Solving
-15 + 9n = 12 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
-15 + 9n + -3n = 12 + 3n + -3n

Combine like terms: 9n + -3n = 6n
-15 + 6n = 12 + 3n + -3n

Combine like terms: 3n + -3n = 0
-15 + 6n = 12 + 0
-15 + 6n = 12

Add '15' to each side of the equation.
-15 + 15 + 6n = 12 + 15

Combine like terms: -15 + 15 = 0
0 + 6n = 12 + 15
6n = 12 + 15

Combine like terms: 12 + 15 = 27
6n = 27

Divide each side by '6'.
n = 4.5

Simplifying
n = 4.5

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