-2(r-9)=-2

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Solution for -2(r-9)=-2 equation: 


Simplifying
-2(r + -9) = -2

Reorder the terms:
-2(-9 + r) = -2
(-9 * -2 + r * -2) = -2
(18 + -2r) = -2

Solving
18 + -2r = -2

Solving for variable 'r'.

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

Add '-18' to each side of the equation.
18 + -18 + -2r = -2 + -18

Combine like terms: 18 + -18 = 0
0 + -2r = -2 + -18
-2r = -2 + -18

Combine like terms: -2 + -18 = -20
-2r = -20

Divide each side by '-2'.
r = 10

Simplifying
r = 10

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