2r-3.1=3.7

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Solution for 2r-3.1=3.7 equation: 


Simplifying
2r + -3.1 = 3.7

Reorder the terms:
-3.1 + 2r = 3.7

Solving
-3.1 + 2r = 3.7

Solving for variable 'r'.

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

Add '3.1' to each side of the equation.
-3.1 + 3.1 + 2r = 3.7 + 3.1

Combine like terms: -3.1 + 3.1 = 0.0
0.0 + 2r = 3.7 + 3.1
2r = 3.7 + 3.1

Combine like terms: 3.7 + 3.1 = 6.8
2r = 6.8

Divide each side by '2'.
r = 3.4

Simplifying
r = 3.4

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