(х+у-z)-(x+у-z),(а+b-c)+2,a+(b-c),a-(a-b+c),(x-y)-(x-y),(a-b+1)-(a+b-1),

Question

Алгебра: (х+у-z)-(x+у-z),(а+b-c)+2,a+(b-c),a-(a-b+c),(x-y)-(x-y),(a-b+1)-(a+b-1),

sokolovasvetla1 · Answer

(х+у-z)-(x+у-z)= x+y-z-x-y+z= 0(а+b-c)+2 = a+b-c+2a+(b-c) = a+b-ca-(a-b+c) = a-a+b-c = b-c(x-y)-(x-y) = x-y-x+y = 0(a-b+1)-(a+b-1) = a-b+1-a-b+1 = -2b+2...

(х+у-z)-(x+у-z),

(а+b-c)+2,

a+(b-c),

a-(a-b+c),

(x-y)-(x-y),

(a-b+1)-(a+b-1),

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