r=2(-2)-1

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


Simplifying
r = 2(-2) + -1

Multiply 2 * -2
r = -4 + -1

Combine like terms: -4 + -1 = -5
r = -5

Solving
r = -5

Solving for variable 'r'.

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

Simplifying
r = -5

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