Ответ:
Объяснение:
1. 2х-(1+2у)=2х-1-2у
a-(3-3b)=1-3+3b
b+(c-a+2d)=b+c-a+2d
a-(3+(d+b))=a-(3+d+b)=a-3-d-b
2. 2x+(3-(4-x))=2x+(3-4+x)=2x+3-4+x=3x-1
3m+(1-(2+m))=3m+(1-2-m)=3m+1-2-m=2m-1
3. 10 2/5b - (3b+4,7)= 10 2/5b - 3b - 4,7 = 7 2/5b - 4,7 = 7,4b - 4,7=7,4*2,5-4,7= 18,5-4,7=13,8
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Answers & Comments
Ответ:
Объяснение:
1. 2х-(1+2у)=2х-1-2у
a-(3-3b)=1-3+3b
b+(c-a+2d)=b+c-a+2d
a-(3+(d+b))=a-(3+d+b)=a-3-d-b
2. 2x+(3-(4-x))=2x+(3-4+x)=2x+3-4+x=3x-1
3m+(1-(2+m))=3m+(1-2-m)=3m+1-2-m=2m-1
3. 10 2/5b - (3b+4,7)= 10 2/5b - 3b - 4,7 = 7 2/5b - 4,7 = 7,4b - 4,7=7,4*2,5-4,7= 18,5-4,7=13,8