Упростите выражение
А)-(8-х)-х+
б)(х-4)-(х+5)+
в) -(у-а-3)-(4+а)=
г) -(16-в+с)+(8+с)
А)-(8-х)-х+
б)(х-4)-(х+5)+
в) -(у-а-3)-(4+а)=
г) -(16-в+с)+(8+с)
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Answers & Comments
б)(х-4)-(х+5)=x-4-x-5=-9
в) -(у-а-3)-(4+а)=-y+a+3-4-a=-y-1=-(y+1)
г) -(16-в+с)+(8+с)=-16+b-c+8+c=-8+b=b-8