Question: Pic attached For a CD, 84 units will be sold at $7 each, while 54 units be sord at $9 each. Find the equation if

Pic attached

Pic attached For a CD, 84 units will be sold at $7

For a CD, 84 units will be sold at $7 each, while 54 units be sord at $9 each. Find the equation if x represents the number of units, and y, the price

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