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Jessie bought 4 balls of wool to knit sweaters for her children, and 5 balls of wool for
herself. Then she spent $9.45 on knitting accessories. The total cost of the wool and the
accessories was $28.71. Identify the equation and its solution that would help to find the
cost of each ball of wool.
4x + 5x + 9.45 = 2.14; $21.40
It would be the third equation. 4 balls for children plus the 5 balls for herself plus the accessories for 9.45 all together is 28.71. Subtract the 9.45 from the total cost then divide by 9 to get the cost per ball
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