July 2022 1 3 Report
Выполните приведение подобных слагаемых:
а)10а + в – 10в – а; б) – 8у + 7х + 6у + 7х; в) 2/7 х – 4/9 у – 5/14 х + 2/3 у;
г) -6а + 5а – х + 4; е) 23х – 23 + 40 + 4х.
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