3+(r+-2)=

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Solution for 3+(r+-2)= equation: 


Simplifying
3 + (r + -2) = 0

Reorder the terms:
3 + (-2 + r) = 0

Remove parenthesis around (-2 + r)
3 + -2 + r = 0

Combine like terms: 3 + -2 = 1
1 + r = 0

Solving
1 + r = 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 + r = 0 + -1

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

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

Simplifying
r = -1

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