-4(2+r)=12

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Solution for -4(2+r)=12 equation: 


Simplifying
-4(2 + r) = 12
(2 * -4 + r * -4) = 12
(-8 + -4r) = 12

Solving
-8 + -4r = 12

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + -4r = 12 + 8

Combine like terms: -8 + 8 = 0
0 + -4r = 12 + 8
-4r = 12 + 8

Combine like terms: 12 + 8 = 20
-4r = 20

Divide each side by '-4'.
r = -5

Simplifying
r = -5

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