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Lissa92
@Lissa92
August 2022
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Если 3а+b=-9 и 4а-3b=1, то найти aхb
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Костяша
Verified answer
Решим сначала систему
3а+b=-9
4a-3 b=1.
b=-9-3 a
4a-3(-9-3a)=1
4 a+27+9a=1
13 a=-26
a=-2
b=-9+6=-3
a*b=-2*(-3)=6
*это значит умножать
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Answers & Comments
Verified answer
Решим сначала систему3а+b=-9
4a-3 b=1.
b=-9-3 a
4a-3(-9-3a)=1
4 a+27+9a=1
13 a=-26
a=-2
b=-9+6=-3
a*b=-2*(-3)=6
*это значит умножать