3n-40+2n=15

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Solution for 3n-40+2n=15 equation: 


Simplifying
3n + -40 + 2n = 15

Reorder the terms:
-40 + 3n + 2n = 15

Combine like terms: 3n + 2n = 5n
-40 + 5n = 15

Solving
-40 + 5n = 15

Solving for variable 'n'.

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

Add '40' to each side of the equation.
-40 + 40 + 5n = 15 + 40

Combine like terms: -40 + 40 = 0
0 + 5n = 15 + 40
5n = 15 + 40

Combine like terms: 15 + 40 = 55
5n = 55

Divide each side by '5'.
n = 11

Simplifying
n = 11

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