While looking at some reports, a store manager notes that gold rings that retail for $46 end up costing customers $49.22 once th
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Using the linear combination method, we can add 3x+7y=31 and -3x-2y=-1 together, which makes 5y=30.
Just divide both sides by 5, and your answer will be y = 6.
To solve for x, just substitute 6 in y in either equation and solve for x:
In short, the correct answer is B. -3 2/3