2(2r+4)=2r-4

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


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

Reorder the terms:
2(4 + 2r) = 2r + -4
(4 * 2 + 2r * 2) = 2r + -4
(8 + 4r) = 2r + -4

Reorder the terms:
8 + 4r = -4 + 2r

Solving
8 + 4r = -4 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
8 + 4r + -2r = -4 + 2r + -2r

Combine like terms: 4r + -2r = 2r
8 + 2r = -4 + 2r + -2r

Combine like terms: 2r + -2r = 0
8 + 2r = -4 + 0
8 + 2r = -4

Add '-8' to each side of the equation.
8 + -8 + 2r = -4 + -8

Combine like terms: 8 + -8 = 0
0 + 2r = -4 + -8
2r = -4 + -8

Combine like terms: -4 + -8 = -12
2r = -12

Divide each side by '2'.
r = -6

Simplifying
r = -6

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