1=2-r

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Solution for 1=2-r equation: 


Simplifying
1 = 2 + -1r

Solving
1 = 2 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
1 + r = 2 + -1r + r

Combine like terms: -1r + r = 0
1 + r = 2 + 0
1 + r = 2

Add '-1' to each side of the equation.
1 + -1 + r = 2 + -1

Combine like terms: 1 + -1 = 0
0 + r = 2 + -1
r = 2 + -1

Combine like terms: 2 + -1 = 1
r = 1

Simplifying
r = 1

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