Mathematics
Junior High
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（14）の途中式を教えて下さると嬉しいです！
ちなみに答えは2です！お願いします✨
(13) a ==
2x-3の値
b=-3のとき,
5a-4b
9
7a-5b
3
の値
(14) x=4, y=-2のとき, (-2xy²) +8x'yの値
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