-4(4+r)=8

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Solution for -4(4+r)=8 equation: 


Simplifying
-4(4 + r) = 8
(4 * -4 + r * -4) = 8
(-16 + -4r) = 8

Solving
-16 + -4r = 8

Solving for variable 'r'.

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

Add '16' to each side of the equation.
-16 + 16 + -4r = 8 + 16

Combine like terms: -16 + 16 = 0
0 + -4r = 8 + 16
-4r = 8 + 16

Combine like terms: 8 + 16 = 24
-4r = 24

Divide each side by '-4'.
r = -6

Simplifying
r = -6

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