Ответ:
1) (5x-9)/a + 9/a= (5x-9+9)/a = 5x/а
2) 15/m:5/m²= 15/m*m²/5=15m²/5m=3m
1)5х-9/а+9/а=5х-9+9/а=5х/а
2)15/m:5/m^2 =15*m^2 /m*5=3m
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Ответ:
1) (5x-9)/a + 9/a= (5x-9+9)/a = 5x/а
2) 15/m:5/m²= 15/m*m²/5=15m²/5m=3m
Ответ:
1)5х-9/а+9/а=5х-9+9/а=5х/а
2)15/m:5/m^2 =15*m^2 /m*5=3m