7+n=20

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Solution for 7+n=20 equation: 


Simplifying
7 + n = 20

Solving
7 + n = 20

Solving for variable 'n'.

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

Add '-7' to each side of the equation.
7 + -7 + n = 20 + -7

Combine like terms: 7 + -7 = 0
0 + n = 20 + -7
n = 20 + -7

Combine like terms: 20 + -7 = 13
n = 13

Simplifying
n = 13

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