4r-12=-16

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Solution for 4r-12=-16 equation: 


Simplifying
4r + -12 = -16

Reorder the terms:
-12 + 4r = -16

Solving
-12 + 4r = -16

Solving for variable 'r'.

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

Add '12' to each side of the equation.
-12 + 12 + 4r = -16 + 12

Combine like terms: -12 + 12 = 0
0 + 4r = -16 + 12
4r = -16 + 12

Combine like terms: -16 + 12 = -4
4r = -4

Divide each side by '4'.
r = -1

Simplifying
r = -1

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