1(-r+1)=

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


Simplifying
1(-1r + 1) = 0

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

Solving
1 + -1r = 0

Solving for variable 'r'.

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

Add '-1' to each side of the equation.
1 + -1 + -1r = 0 + -1

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

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

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

Simplifying
r = 1

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