r-5.20=3.50

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Solution for r-5.20=3.50 equation: 


Simplifying
r + -5.20 = 3.50

Reorder the terms:
-5.20 + r = 3.50

Solving
-5.20 + r = 3.50

Solving for variable 'r'.

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

Add '5.20' to each side of the equation.
-5.20 + 5.20 + r = 3.50 + 5.20

Combine like terms: -5.20 + 5.20 = 0.00
0.00 + r = 3.50 + 5.20
r = 3.50 + 5.20

Combine like terms: 3.50 + 5.20 = 8.7
r = 8.7

Simplifying
r = 8.7

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