Раскройте скобки и упростите выражение:
3(a-b)-2(a+b);
4(x+y)+5(2x-y)
2,4(c-3d)-1,3(2c-d)
-3/4(1/3m+n)-1/4(3m+n)
3(a-b)-2(a+b);
4(x+y)+5(2x-y)
2,4(c-3d)-1,3(2c-d)
-3/4(1/3m+n)-1/4(3m+n)
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Answers & Comments
1)3а-3b-2a-2b=a-5b
2)4x+4y+10x-5y=14x-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