Вычислите: 1) — (12)*7=2) (-3,4)*(-25)=3) 6*(-3/14)=4) (-7/15)*(-3)=

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1) — (12)*7=-842) (-3,4)*(-25)=853) 6*(-3/14)=- 9/74) (-7/15)*(-3)=7/5

Вычислите: 1) — (12)7=2) (-3,4)(-25)=3) 6(-3/14)=4) (-7/15)(-3)=