August 2022 1 13 Report
Раскройте скобки и приведите подобные слагаемые:
а) -(4x-18)+18 b) (5-2b)-(7+10b) в)-(3c+5x)-(9c-6x) г) (2a-7y)-(5a-7y) д) (11р+9с)-(12+11р+9с)
е) х-(х-15)+(13+х) ж) (3а-21)-2а-(17-8а) з) (2-4b)-(31b-6)-11 е) 14b-(15b+y)-(y+10b)
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