3(2n-1)-2n=12

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Solution for 3(2n-1)-2n=12 equation:


Simplifying
3(2n + -1) + -2n = 12

Reorder the terms:
3(-1 + 2n) + -2n = 12
(-1 * 3 + 2n * 3) + -2n = 12
(-3 + 6n) + -2n = 12

Combine like terms: 6n + -2n = 4n
-3 + 4n = 12

Solving
-3 + 4n = 12

Solving for variable 'n'.

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

Add '3' to each side of the equation.
-3 + 3 + 4n = 12 + 3

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

Combine like terms: 12 + 3 = 15
4n = 15

Divide each side by '4'.
n = 3.75

Simplifying
n = 3.75

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