试题与答案

在等式3 ×□﹣2 ×□=15的两个方格内分别填入一个数,使这两个数是互为相反数

题型:填空题

题目:

在等式3 ×□﹣2 ×□=15的两个方格内分别填入一个数,使这两个数是互为相反数且等式成立.则第一个方格内的数是(    ).

答案:

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