Mathematics
Senior High
どうして両辺に9を掛けるとこのような式になるのですか？教えてください🙏
9 USER aß+ma+nB
3/10
2
(a-3)(8-3) = -5/2-3=(a+n)(8+m)-n
(3a-2)(3B-2)=-5
9
両辺に9を
(ID)(整数)×(整数)
掛
ける.
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