2(4+r)=-8

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Solution for 2(4+r)=-8 equation: 


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

Solving
8 + 2r = -8

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 + 2r = -8 + -8

Combine like terms: 8 + -8 = 0
0 + 2r = -8 + -8
2r = -8 + -8

Combine like terms: -8 + -8 = -16
2r = -16

Divide each side by '2'.
r = -8

Simplifying
r = -8

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