2(r-4)=

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Solution for 2(r-4)= equation: 


Simplifying
2(r + -4) = 0

Reorder the terms:
2(-4 + r) = 0
(-4 * 2 + r * 2) = 0
(-8 + 2r) = 0

Solving
-8 + 2r = 0

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 = 0 + 8

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

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

Divide each side by '2'.
r = 4

Simplifying
r = 4

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