.2r=r-10

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Solution for .2r=r-10 equation: 


Simplifying
0.2r = r + -10

Reorder the terms:
0.2r = -10 + r

Solving
0.2r = -10 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
0.2r + -1r = -10 + r + -1r

Combine like terms: 0.2r + -1r = -0.8r
-0.8r = -10 + r + -1r

Combine like terms: r + -1r = 0
-0.8r = -10 + 0
-0.8r = -10

Divide each side by '-0.8'.
r = 12.5

Simplifying
r = 12.5

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