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Verified Answer :

texaschic101

A/4 + 2 = 6....subtract 2 from both sides
A/4 = 6 - 2
A/4 = 4...multiply both sides by 4, eliminating the 4 on the left side
A = 4 4
A = 16

-4 = r/20....multiply both sides by 20, eliminating the 20 on the right side
-4 20 = r
-80 = r

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