0.3r-4=2

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Solution for 0.3r-4=2 equation: 


Simplifying
0.3r + -4 = 2

Reorder the terms:
-4 + 0.3r = 2

Solving
-4 + 0.3r = 2

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + 0.3r = 2 + 4

Combine like terms: -4 + 4 = 0
0 + 0.3r = 2 + 4
0.3r = 2 + 4

Combine like terms: 2 + 4 = 6
0.3r = 6

Divide each side by '0.3'.
r = 20

Simplifying
r = 20

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