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yulli1
@yulli1
July 2022
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Упростите выражения при b= -0,4 а) 3b+6+4b-4; б) b-5+4b-8; в) -6b-6+(b+6); г) (3b-5)-(2b-9); д) 5b+4*(b-2); е) 5b-3*(b+2).
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Amigo3
а) 3b+6+4b-4;=7*b+2=2-7*0,4= -0,8
б) b-5+4b-8=5*b-13=-2-13=-15;
в) -6b-6+(b+6)=-5*b=-5*(-0,4);=2
г) (3b-5)-(2b-9)=b+4=4-0,4=3,6;
д) 5b+4*(b-2)=9*b-2=9*(-0,4)-2=-5,6;
е) 5b-3*(b+2)=2*b-6=2*(-0,4)-6=-6,8.
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Answers & Comments
б) b-5+4b-8=5*b-13=-2-13=-15;
в) -6b-6+(b+6)=-5*b=-5*(-0,4);=2
г) (3b-5)-(2b-9)=b+4=4-0,4=3,6;
д) 5b+4*(b-2)=9*b-2=9*(-0,4)-2=-5,6;
е) 5b-3*(b+2)=2*b-6=2*(-0,4)-6=-6,8.