r+(-3.7)=9.9

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Solution for r+(-3.7)=9.9 equation: 


Simplifying
r + (-3.7) = 9.9
r + -3.7 = 9.9

Reorder the terms:
-3.7 + r = 9.9

Solving
-3.7 + r = 9.9

Solving for variable 'r'.

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

Add '3.7' to each side of the equation.
-3.7 + 3.7 + r = 9.9 + 3.7

Combine like terms: -3.7 + 3.7 = 0.0
0.0 + r = 9.9 + 3.7
r = 9.9 + 3.7

Combine like terms: 9.9 + 3.7 = 13.6
r = 13.6

Simplifying
r = 13.6

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