Ответ:
-97/15
Пошаговое объяснение:
-2(2,7-(-5/6)-1)-(6-3,4x(-5/6))-8(0,4-2)=
-2(27/10×(-5/6)-1)-(6-34/10×(-5/6))-8×(-1,6)=
-2(-27/12-1)-(6-17/6)-12,8=
-2(-27/12-12/12)-(36/6-17/6)-12,8=
-2x(-39/12)-19/6-128/10-39/6-19/6-128/10=20/
6-128/10-100/30-384/30=-284/30=-142/15=
-9 7/15
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Answers & Comments
Ответ:
-97/15
Пошаговое объяснение:
-2(2,7-(-5/6)-1)-(6-3,4x(-5/6))-8(0,4-2)=
-2(27/10×(-5/6)-1)-(6-34/10×(-5/6))-8×(-1,6)=
-2(-27/12-1)-(6-17/6)-12,8=
-2(-27/12-12/12)-(36/6-17/6)-12,8=
-2x(-39/12)-19/6-128/10-39/6-19/6-128/10=20/
6-128/10-100/30-384/30=-284/30=-142/15=
-9 7/15