2n+4n+3=45

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Solution for 2n+4n+3=45 equation: 


Simplifying
2n + 4n + 3 = 45

Reorder the terms:
3 + 2n + 4n = 45

Combine like terms: 2n + 4n = 6n
3 + 6n = 45

Solving
3 + 6n = 45

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 + 6n = 45 + -3

Combine like terms: 3 + -3 = 0
0 + 6n = 45 + -3
6n = 45 + -3

Combine like terms: 45 + -3 = 42
6n = 42

Divide each side by '6'.
n = 7

Simplifying
n = 7

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