-4+(-r)=20

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Solution for -4+(-r)=20 equation: 


Simplifying
-4 + (-1r) = 20

Solving
-4 + (-1r) = 20

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + (-1r) = 20 + 4

Combine like terms: -4 + 4 = 0
0 + (-1r) = 20 + 4
(-1r) = 20 + 4

Combine like terms: 20 + 4 = 24
(-1r) = 24

Divide each side by '-1'.
r = -24

Simplifying
r = -24

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