r=6.8-0.4

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Solution for r=6.8-0.4 equation: 


Simplifying
r = 6.8 + -0.4

Combine like terms: 6.8 + -0.4 = 6.4
r = 6.4

Solving
r = 6.4

Solving for variable 'r'.

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

Simplifying
r = 6.4

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