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Ответ

Ответ дан
bril58

5m-(3m+5)+(2m-4)

5m-3m-5+2m-4

2m-5+2m-4

4m-9

Ответ:4m-9

Ответ

Ответ дан
Aida0704

5m-(3m+5)+(2m-4)

5m-3m-5+2m-4

5m-3m+2m-5-4

2m+2m-9

4m-9

(m=-9:4

m=-2,25)

это на всякий случай вдруг понадобится

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