r+189=670

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Solution for r+189=670 equation: 


Simplifying
r + 189 = 670

Reorder the terms:
189 + r = 670

Solving
189 + r = 670

Solving for variable 'r'.

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

Add '-189' to each side of the equation.
189 + -189 + r = 670 + -189

Combine like terms: 189 + -189 = 0
0 + r = 670 + -189
r = 670 + -189

Combine like terms: 670 + -189 = 481
r = 481

Simplifying
r = 481

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