12-0.20r=2r+1

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Solution for 12-0.20r=2r+1 equation:


Simplifying
12 + -0.20r = 2r + 1

Reorder the terms:
12 + -0.20r = 1 + 2r

Solving
12 + -0.20r = 1 + 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.
12 + -0.20r + -2r = 1 + 2r + -2r

Combine like terms: -0.20r + -2r = -2.2r
12 + -2.2r = 1 + 2r + -2r

Combine like terms: 2r + -2r = 0
12 + -2.2r = 1 + 0
12 + -2.2r = 1

Add '-12' to each side of the equation.
12 + -12 + -2.2r = 1 + -12

Combine like terms: 12 + -12 = 0
0 + -2.2r = 1 + -12
-2.2r = 1 + -12

Combine like terms: 1 + -12 = -11
-2.2r = -11

Divide each side by '-2.2'.
r = 5

Simplifying
r = 5

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