i+5=20

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Solution for i+5=20 equation: 


Simplifying
i + 5 = 20

Reorder the terms:
5 + i = 20

Solving
5 + i = 20

Solving for variable 'i'.

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

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

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

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

Simplifying
i = 15

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