July 2022 1 9 Report

Пожалуйста! Раскройте скобки в выражении:

а) m + (d-f) + n

б) x - ( z+ y)

в) - ( - l + s) - ( r-q+ (-t))

г) (x+y) - (k+x-z)

д) ( a-b) - (b +a)

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