r+107=990

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Solution for r+107=990 equation: 


Simplifying
r + 107 = 990

Reorder the terms:
107 + r = 990

Solving
107 + r = 990

Solving for variable 'r'.

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

Add '-107' to each side of the equation.
107 + -107 + r = 990 + -107

Combine like terms: 107 + -107 = 0
0 + r = 990 + -107
r = 990 + -107

Combine like terms: 990 + -107 = 883
r = 883

Simplifying
r = 883

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