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анастасияблэк
@анастасияблэк
July 2022
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СРОЧНО, ПОЖАЛУЙСТА ПОМОГИТЕ!!!!! Раскройте скобки и упростите выражения:
а) 7/8*(4-x)-(3/4+x)
б) -(3/19-y)-1/2(y+2/19)
в) -7/13*(26/27+x)-(4/9-x)
г) -(1/16-y)+3/4(1/8+y)
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ndusha
Verified answer
А) 7/8 * (4-х) - (3/4 + х) = 7/8 * 4-7 / 8х-3/4-х = 7/2-1 7/8х-3/4=14/4-3/4-1 7/8х=
=11/4-1 7/8=2 3/4-1 7/8х
б) - (3/19-у) -1/2 (у + 2/19)=-3/19+у-1/2у-1/2*2/19=1/2у-3/19-1/19=1/2у-4/19
в) -7/13 * (26/27 + X) - (4/9-х) =-7/13*26/27-7/13х-4/9+х=-7/1*2/27-4/9+6/13х=
=-14/27-12/27+6/13х=6/13х-26/27
г) - (1/16-у) +3/4 (1/8 + у)=-1/16+у+3/4*1/8+3/4у=1 3/4у-1/16+3/32=
=1 3/4у-2/32+3/32=1 3/4у-1/32
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Answers & Comments
Verified answer
А) 7/8 * (4-х) - (3/4 + х) = 7/8 * 4-7 / 8х-3/4-х = 7/2-1 7/8х-3/4=14/4-3/4-1 7/8х==11/4-1 7/8=2 3/4-1 7/8х
б) - (3/19-у) -1/2 (у + 2/19)=-3/19+у-1/2у-1/2*2/19=1/2у-3/19-1/19=1/2у-4/19
в) -7/13 * (26/27 + X) - (4/9-х) =-7/13*26/27-7/13х-4/9+х=-7/1*2/27-4/9+6/13х=
=-14/27-12/27+6/13х=6/13х-26/27
г) - (1/16-у) +3/4 (1/8 + у)=-1/16+у+3/4*1/8+3/4у=1 3/4у-1/16+3/32=
=1 3/4у-2/32+3/32=1 3/4у-1/32