r-20=-43

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Solution for r-20=-43 equation: 


Simplifying
r + -20 = -43

Reorder the terms:
-20 + r = -43

Solving
-20 + r = -43

Solving for variable 'r'.

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

Add '20' to each side of the equation.
-20 + 20 + r = -43 + 20

Combine like terms: -20 + 20 = 0
0 + r = -43 + 20
r = -43 + 20

Combine like terms: -43 + 20 = -23
r = -23

Simplifying
r = -23

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