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liza1367
@liza1367
April 2021
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плиз сделайте 2.33 умоляю
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parus77
Verified answer
1)3а-(7+2а)=3а-7-2а=а-7
2)5в²-9-(4в²-в+5)=5в²-4в²-9-5+в=в²+в-14
3)4х+2-(х+1)=4х-х+2-1=3х+1
4)3m²+m-(1-m+3m²)=3m²+m-1+m-3m²=2m-1
5)2a-3b-(-b-a)=2a-3b+b+a=3a-2b
6)а²+а+1-(а²-а+1)=а²+а+1-а²+а-1=2а
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Answers & Comments
Verified answer
1)3а-(7+2а)=3а-7-2а=а-72)5в²-9-(4в²-в+5)=5в²-4в²-9-5+в=в²+в-14
3)4х+2-(х+1)=4х-х+2-1=3х+1
4)3m²+m-(1-m+3m²)=3m²+m-1+m-3m²=2m-1
5)2a-3b-(-b-a)=2a-3b+b+a=3a-2b
6)а²+а+1-(а²-а+1)=а²+а+1-а²+а-1=2а