4n-12+7n=20

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Solution for 4n-12+7n=20 equation:


Simplifying
4n + -12 + 7n = 20

Reorder the terms:
-12 + 4n + 7n = 20

Combine like terms: 4n + 7n = 11n
-12 + 11n = 20

Solving
-12 + 11n = 20

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 + 11n = 20 + 12

Combine like terms: -12 + 12 = 0
0 + 11n = 20 + 12
11n = 20 + 12

Combine like terms: 20 + 12 = 32
11n = 32

Divide each side by '11'.
n = 2.909090909

Simplifying
n = 2.909090909

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