3n+5=20-2n

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Solution for 3n+5=20-2n equation:


Simplifying
3n + 5 = 20 + -2n

Reorder the terms:
5 + 3n = 20 + -2n

Solving
5 + 3n = 20 + -2n

Solving for variable 'n'.

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

Add '2n' to each side of the equation.
5 + 3n + 2n = 20 + -2n + 2n

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

Combine like terms: -2n + 2n = 0
5 + 5n = 20 + 0
5 + 5n = 20

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

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

Combine like terms: 20 + -5 = 15
5n = 15

Divide each side by '5'.
n = 3

Simplifying
n = 3

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