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- Mathematics learning plan of the first volume of the first day of junior high school
Mathematics learning plan of the first volume of the first day of junior high school
Solution: If white leather has X pieces and black leather has (32-X) pieces.
6X+5(32-X)=6X+3X
Solve the equation, X= 16
32-X= 16
Answer: white leather 16, black leather 16.
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