Упростите выражения
A) (c-d) - (c+d)
Б) (u+v) - ( v-u)
B) (k+m) - (k-m) + (m-k)
Г) (b+1) - (a-1) - (b-a)
A) (c-d) - (c+d)
Б) (u+v) - ( v-u)
B) (k+m) - (k-m) + (m-k)
Г) (b+1) - (a-1) - (b-a)
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Answers & Comments
б)u+v-v+u=2u
в)k+m-k+m+m-k=3m-k
г)b+1-a+1-b+a=2