2(r-20)=-2

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Solution for 2(r-20)=-2 equation: 


Simplifying
2(r + -20) = -2

Reorder the terms:
2(-20 + r) = -2
(-20 * 2 + r * 2) = -2
(-40 + 2r) = -2

Solving
-40 + 2r = -2

Solving for variable 'r'.

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

Add '40' to each side of the equation.
-40 + 40 + 2r = -2 + 40

Combine like terms: -40 + 40 = 0
0 + 2r = -2 + 40
2r = -2 + 40

Combine like terms: -2 + 40 = 38
2r = 38

Divide each side by '2'.
r = 19

Simplifying
r = 19

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