Question

заполните пропуски знаками + или - затем упростите выражение

...(x-y)+x=-x+y+x=
...7,3...(-a-7)=-7,3-a-7=
...(k-3)...(-x-k+0,3)=-k+3+x+k-0,3=
...8,5a...(x-0,5a)...(-4,5a+x)=8,5a-x+0,5a-4,5a+x=

Answer 1

-(x-y)+x=-x+y+x=y
-7,3+(-a-7)=-7,3-a-7=-14,3-a
-(k-3)-(-x-k+0,3)=-k+3+x+k-0,3=3+x-0,3=2,7+x
8,5a-(x-0,5a)+(-4,5a+x)=8,5a-x+0,5a-4,5a+x=4,5а 

Answer 2

-(x-y)+x=-x+y+x=y
-7,3+(-a-7)=-7,3-a-7=-14,3-a
-(k-3)-(-x-k+0,3)=-k+3+x+k-0,3=2,7+x
8,5a-(x-0,5a)+(-4,5a+x)=8,5a-x+0,5a-4,5a+x=4,5a