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kashasas
@kashasas
September 2021
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решите пожалуйста!! срочно надо
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tabarc
3х-6у=3(х-2у)
15а-а-3+2а-1= 16а-4=4(4а-1)
2(3а-4)+5=6а-8+5=6а-3=3(2а-1)
2)15.42-13.02=2.4
6.72/2.4=2.8
2-2.8=-0.8
3) 0.5(х-4у)+0.1(5х+10у)=0.5х-2у+0.5х+у=х-у
5а-(3а-(2а-4))=5а-(3а-2а+4)=4а-4= 4(а-1)
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Answers & Comments
15а-а-3+2а-1= 16а-4=4(4а-1)
2(3а-4)+5=6а-8+5=6а-3=3(2а-1)
2)15.42-13.02=2.4
6.72/2.4=2.8
2-2.8=-0.8
3) 0.5(х-4у)+0.1(5х+10у)=0.5х-2у+0.5х+у=х-у
5а-(3а-(2а-4))=5а-(3а-2а+4)=4а-4= 4(а-1)