.2r=9-.4r

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Solution for .2r=9-.4r equation:


Simplifying
0.2r = 9 + -0.4r

Solving
0.2r = 9 + -0.4r

Solving for variable 'r'.

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

Add '0.4r' to each side of the equation.
0.2r + 0.4r = 9 + -0.4r + 0.4r

Combine like terms: 0.2r + 0.4r = 0.6r
0.6r = 9 + -0.4r + 0.4r

Combine like terms: -0.4r + 0.4r = 0.0
0.6r = 9 + 0.0
0.6r = 9

Divide each side by '0.6'.
r = 15

Simplifying
r = 15

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