7+n=21

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Solution for 7+n=21 equation: 


Simplifying
7 + n = 21

Solving
7 + n = 21

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 = 21 + -7

Combine like terms: 7 + -7 = 0
0 + n = 21 + -7
n = 21 + -7

Combine like terms: 21 + -7 = 14
n = 14

Simplifying
n = 14

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