0.5-3r=-3.9

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Solution for 0.5-3r=-3.9 equation: 


Simplifying
0.5 + -3r = -3.9

Solving
0.5 + -3r = -3.9

Solving for variable 'r'.

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

Add '-0.5' to each side of the equation.
0.5 + -0.5 + -3r = -3.9 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + -3r = -3.9 + -0.5
-3r = -3.9 + -0.5

Combine like terms: -3.9 + -0.5 = -4.4
-3r = -4.4

Divide each side by '-3'.
r = 1.466666667

Simplifying
r = 1.466666667

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