13+g=21

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Solution for 13+g=21 equation: 


Simplifying
13 + g = 21

Solving
13 + g = 21

Solving for variable 'g'.

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

Add '-13' to each side of the equation.
13 + -13 + g = 21 + -13

Combine like terms: 13 + -13 = 0
0 + g = 21 + -13
g = 21 + -13

Combine like terms: 21 + -13 = 8
g = 8

Simplifying
g = 8

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