3m-3(m-n) = 3m - 3m + 3n = 3n
6x-5a+2x-4a = 8x - 9a
-(m+k)+2(m+k) = - m - k + 2m + 2k = m + k
3m-3(m-n)=3m-3m+3n=3n
6x-5a+2x-4a=8x-9a
-(m+k)+2(m+k)=-m-k+2m+2k=m+k
Так?
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3m-3(m-n) = 3m - 3m + 3n = 3n
6x-5a+2x-4a = 8x - 9a
-(m+k)+2(m+k) = - m - k + 2m + 2k = m + k
3m-3(m-n)=3m-3m+3n=3n
6x-5a+2x-4a=8x-9a
-(m+k)+2(m+k)=-m-k+2m+2k=m+k
Так?