-39+r=45

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Solution for -39+r=45 equation: 


Simplifying
-39 + r = 45

Solving
-39 + r = 45

Solving for variable 'r'.

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

Add '39' to each side of the equation.
-39 + 39 + r = 45 + 39

Combine like terms: -39 + 39 = 0
0 + r = 45 + 39
r = 45 + 39

Combine like terms: 45 + 39 = 84
r = 84

Simplifying
r = 84

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