r+(-4)=-28

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Solution for r+(-4)=-28 equation: 


Simplifying
r + (-4) = -28
r + -4 = -28

Reorder the terms:
-4 + r = -28

Solving
-4 + r = -28

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 + r = -28 + 4

Combine like terms: -4 + 4 = 0
0 + r = -28 + 4
r = -28 + 4

Combine like terms: -28 + 4 = -24
r = -24

Simplifying
r = -24

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