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Ника6884
@Ника6884
August 2022
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упростите выражение и найдите значение
1) 7a - 9b + a +11b
2) a - (a - 8) + (12 + a)
3) -3(c - 5) + 6(c+3)
4) -3c - 5 + 6c +3
решите плиз срочно
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Tasdaser
Verified answer
1) 7a - 9b + a +11b=8а+2b
2) a - (a - 8) + (12 + a) =a-a+8+12+a=20+a
3) -3(c - 5) + 6(c+3)=-3c+15+6c+18=3c+33
4) -3c - 5 + 6c +3 =3c-2
5 votes
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Answers & Comments
Verified answer
1) 7a - 9b + a +11b=8а+2b2) a - (a - 8) + (12 + a) =a-a+8+12+a=20+a
3) -3(c - 5) + 6(c+3)=-3c+15+6c+18=3c+33
4) -3c - 5 + 6c +3 =3c-2