5+a=18

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Solution for 5+a=18 equation: 


Simplifying
5 + a = 18

Solving
5 + a = 18

Solving for variable 'a'.

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

Add '-5' to each side of the equation.
5 + -5 + a = 18 + -5

Combine like terms: 5 + -5 = 0
0 + a = 18 + -5
a = 18 + -5

Combine like terms: 18 + -5 = 13
a = 13

Simplifying
a = 13

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