r-(-23)=5

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Solution for r-(-23)=5 equation: 


Simplifying
r + -1(-23) = 5

Multiply -1 * -23
r + 23 = 5

Reorder the terms:
23 + r = 5

Solving
23 + r = 5

Solving for variable 'r'.

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

Add '-23' to each side of the equation.
23 + -23 + r = 5 + -23

Combine like terms: 23 + -23 = 0
0 + r = 5 + -23
r = 5 + -23

Combine like terms: 5 + -23 = -18
r = -18

Simplifying
r = -18

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