2n+20=55-3n

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Solution for 2n+20=55-3n equation:


Simplifying
2n + 20 = 55 + -3n

Reorder the terms:
20 + 2n = 55 + -3n

Solving
20 + 2n = 55 + -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.
20 + 2n + 3n = 55 + -3n + 3n

Combine like terms: 2n + 3n = 5n
20 + 5n = 55 + -3n + 3n

Combine like terms: -3n + 3n = 0
20 + 5n = 55 + 0
20 + 5n = 55

Add '-20' to each side of the equation.
20 + -20 + 5n = 55 + -20

Combine like terms: 20 + -20 = 0
0 + 5n = 55 + -20
5n = 55 + -20

Combine like terms: 55 + -20 = 35
5n = 35

Divide each side by '5'.
n = 7

Simplifying
n = 7

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