2+2n=20

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Solution for 2+2n=20 equation: 


Simplifying
2 + 2n = 20

Solving
2 + 2n = 20

Solving for variable 'n'.

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

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

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

Combine like terms: 20 + -2 = 18
2n = 18

Divide each side by '2'.
n = 9

Simplifying
n = 9

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