-(r+4)=-12

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Solution for -(r+4)=-12 equation: 


Simplifying
-1(r + 4) = -12

Reorder the terms:
-1(4 + r) = -12
(4 * -1 + r * -1) = -12
(-4 + -1r) = -12

Solving
-4 + -1r = -12

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 = -12 + 4

Combine like terms: -4 + 4 = 0
0 + -1r = -12 + 4
-1r = -12 + 4

Combine like terms: -12 + 4 = -8
-1r = -8

Divide each side by '-1'.
r = 8

Simplifying
r = 8

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