13+m=20

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Solution for 13+m=20 equation: 


Simplifying
13 + m = 20

Solving
13 + m = 20

Solving for variable 'm'.

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

Add '-13' to each side of the equation.
13 + -13 + m = 20 + -13

Combine like terms: 13 + -13 = 0
0 + m = 20 + -13
m = 20 + -13

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

Simplifying
m = 7

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