12-(-0.2)=2r+1

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Solution for 12-(-0.2)=2r+1 equation:


Simplifying
12 + -1(-0.2) = 2r + 1

Multiply -1 * -0.2
12 + 0.2 = 2r + 1

Combine like terms: 12 + 0.2 = 12.2
12.2 = 2r + 1

Reorder the terms:
12.2 = 1 + 2r

Solving
12.2 = 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.
12.2 + -2r = 1 + 2r + -2r

Combine like terms: 2r + -2r = 0
12.2 + -2r = 1 + 0
12.2 + -2r = 1

Add '-12.2' to each side of the equation.
12.2 + -12.2 + -2r = 1 + -12.2

Combine like terms: 12.2 + -12.2 = 0.0
0.0 + -2r = 1 + -12.2
-2r = 1 + -12.2

Combine like terms: 1 + -12.2 = -11.2
-2r = -11.2

Divide each side by '-2'.
r = 5.6

Simplifying
r = 5.6

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