-3.8=.2+2r

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Solution for -3.8=.2+2r equation:


Simplifying
-3.8 = 0.2 + 2r

Solving
-3.8 = 0.2 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-3.8 + -2r = 0.2 + 2r + -2r

Combine like terms: 2r + -2r = 0
-3.8 + -2r = 0.2 + 0
-3.8 + -2r = 0.2

Add '3.8' to each side of the equation.
-3.8 + 3.8 + -2r = 0.2 + 3.8

Combine like terms: -3.8 + 3.8 = 0.0
0.0 + -2r = 0.2 + 3.8
-2r = 0.2 + 3.8

Combine like terms: 0.2 + 3.8 = 4
-2r = 4

Divide each side by '-2'.
r = -2

Simplifying
r = -2

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