2r+9.4=39.8

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Solution for 2r+9.4=39.8 equation: 


Simplifying
2r + 9.4 = 39.8

Reorder the terms:
9.4 + 2r = 39.8

Solving
9.4 + 2r = 39.8

Solving for variable 'r'.

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

Add '-9.4' to each side of the equation.
9.4 + -9.4 + 2r = 39.8 + -9.4

Combine like terms: 9.4 + -9.4 = 0.0
0.0 + 2r = 39.8 + -9.4
2r = 39.8 + -9.4

Combine like terms: 39.8 + -9.4 = 30.4
2r = 30.4

Divide each side by '2'.
r = 15.2

Simplifying
r = 15.2

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