O=2(r-3)+4

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Solution for O=2(r-3)+4 equation: 


Simplifying
O = 2(r + -3) + 4

Reorder the terms:
O = 2(-3 + r) + 4
O = (-3 * 2 + r * 2) + 4
O = (-6 + 2r) + 4

Reorder the terms:
O = -6 + 4 + 2r

Combine like terms: -6 + 4 = -2
O = -2 + 2r

Solving
O = -2 + 2r

Solving for variable 'O'.

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

Simplifying
O = -2 + 2r

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