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dashapest3009
@dashapest3009
July 2022
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Помогите пожалуйста :раскройте скобки и упростить выражение :
3(a-b) -2(a+b)
2) 4 (x-y) +5(2x-y)
3)2,4(c-3d)-1,3(2c-d)
4) -3/4 (1/3m+n)-1/4(3m+n)
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якура
1. 3а-3b-2a-2b=a-5b
2. 4х+4y+10х-5y=14х-y
3. 2.4c-7.2d-2.6c+1.3d=-0/2c-5/9d
4. -1/4m-3/4n-3/4m-1\4n=-m-n=-(m+n)
1 votes
Thanks 4
bAklAzhAn4iK
1) 3(a-b) -2(a+b) =3a-3b-2a-2b=a-5b
2) 4 (x-y) +5(2x-y)=4x-4y+10x-5y=14x-9y
3) 2,4(c-3d)-1,3(2c-d)=2.4c-7.2d-2.6c+1.3d=-0.2c-5.9d
4) -3/4 (1/3m+n)-1/4(3m+n)=-1/4m-3/4n-3/4m-1/4n=-m-n
1 votes
Thanks 3
dashapest3009
Спасибо большое
dashapest3009
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Answers & Comments
2. 4х+4y+10х-5y=14х-y
3. 2.4c-7.2d-2.6c+1.3d=-0/2c-5/9d
4. -1/4m-3/4n-3/4m-1\4n=-m-n=-(m+n)
2) 4 (x-y) +5(2x-y)=4x-4y+10x-5y=14x-9y
3) 2,4(c-3d)-1,3(2c-d)=2.4c-7.2d-2.6c+1.3d=-0.2c-5.9d
4) -3/4 (1/3m+n)-1/4(3m+n)=-1/4m-3/4n-3/4m-1/4n=-m-n