r+3.4=8.9

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Solution for r+3.4=8.9 equation: 


Simplifying
r + 3.4 = 8.9

Reorder the terms:
3.4 + r = 8.9

Solving
3.4 + r = 8.9

Solving for variable 'r'.

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

Add '-3.4' to each side of the equation.
3.4 + -3.4 + r = 8.9 + -3.4

Combine like terms: 3.4 + -3.4 = 0.0
0.0 + r = 8.9 + -3.4
r = 8.9 + -3.4

Combine like terms: 8.9 + -3.4 = 5.5
r = 5.5

Simplifying
r = 5.5

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