13+r=

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Solution for 13+r= equation:


Simplifying
13 + r = 0

Solving
13 + r = 0

Solving for variable 'r'.

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

Add '-13' to each side of the equation.
13 + -13 + r = 0 + -13

Combine like terms: 13 + -13 = 0
0 + r = 0 + -13
r = 0 + -13

Combine like terms: 0 + -13 = -13
r = -13

Simplifying
r = -13

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