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(13) r=2, y=ー4のとき, 3x+ー 5 8

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✨ Best Answer ✨

どうぞ!

peach

ありがとうございます😭❕

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X=2 Y=-4 なので
3X + 5/8Yに代入します。

3 × 2 + 5/8 × (-4)
=6 + (-5/2)
=12/2 - 5/2
=7/2

答え 7/2

peach

ありがとうございます😊❕

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