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marinachekh2000
@marinachekh2000
April 2023
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manyny06
Verified answer
Ответ:
решение смотри на фотографии
2 votes
Thanks 1
siksandora
1) a -(4a-11) +(9-2a)= 20-5a
a-4a+11+9-2a=20-5a
-5a+20=20-5a
a є R
2)6(3с-4) -5(3c-11) +2 = 3c +33
18c- 24 -15c +55 +2 =3c+33
3c+33=3c+33
c є R
3)10-9(a-2/3)+7a -16= -2a
10-9a+6+7a-16=-2a
0-2a=-2a
0=0
a є R
0 votes
Thanks 1
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Answers & Comments
Verified answer
Ответ:
решение смотри на фотографии
a-4a+11+9-2a=20-5a
-5a+20=20-5a
a є R
2)6(3с-4) -5(3c-11) +2 = 3c +33
18c- 24 -15c +55 +2 =3c+33
3c+33=3c+33
c є R
3)10-9(a-2/3)+7a -16= -2a
10-9a+6+7a-16=-2a
0-2a=-2a
0=0
a є R