-2(r+-1)=0

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Solution for -2(r+-1)=0 equation: 


Simplifying
-2(r + -1) = 0

Reorder the terms:
-2(-1 + r) = 0
(-1 * -2 + r * -2) = 0
(2 + -2r) = 0

Solving
2 + -2r = 0

Solving for variable 'r'.

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

Add '-2' to each side of the equation.
2 + -2 + -2r = 0 + -2

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

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

Divide each side by '-2'.
r = 1

Simplifying
r = 1

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