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88770
@88770
July 2022
2
7
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Решите уравнения:
3(1-2х)-5(3-х)-6(3х-4)=83
2м+м(3-(м+1))=м(2-м)+12
7+3(-а-3(а+5))=5(7-2а)+а
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ewgenijbark
Verified answer
1)3-6х-15+5х-18х+24=83
-19х=71
х=-71/19
х=3 14/19
2) 2m+3m-m²-m=2m-m²+12
2m=12
m=6
3)7-3a-9a-45=35-9a
3a=-73
a=-24 1/3
1 votes
Thanks 1
riciticitavi
1)3-6x-15+5x-18x+24=83
-19x=71 x= -71/19
2)2m- m^2 +2m= 2m-m^2+12
-m^2+4m-2m+m^2+-12
2m=12
m=6
3)7-3a-9a-45=35-9a
-3a-9a+9a=35+45-7
-3a=73
a= -73/3 =24 целых и 1/3
3 votes
Thanks 1
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Answers & Comments
Verified answer
1)3-6х-15+5х-18х+24=83-19х=71
х=-71/19
х=3 14/19
2) 2m+3m-m²-m=2m-m²+12
2m=12
m=6
3)7-3a-9a-45=35-9a
3a=-73
a=-24 1/3
-19x=71 x= -71/19
2)2m- m^2 +2m= 2m-m^2+12
-m^2+4m-2m+m^2+-12
2m=12
m=6
3)7-3a-9a-45=35-9a
-3a-9a+9a=35+45-7
-3a=73
a= -73/3 =24 целых и 1/3