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hortytsya8rambler
@hortytsya8rambler
August 2022
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Знайди значення виразів:а)-а-b-(-a+x)+(b-y),якщо а=6;b=-2,71;,x=-4;y=-8,6;б)-4*(-0,8+2y)-(4,2x-y),якщоx=2;y=-1
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helena312
Verified answer
-a-b-(-a+x)+(b-y)=-a-b+a-x+b-y=-x-y
при х=-4 у=-8,6
-х-у=-(-4)-(-8,6)=4+8,6=12,6
-4(-0,8+2у)-(4,2х-у)=3,2-8у-4,2х+у=3,2-7у-4,2х
при х=2 у=-1
3,2-7(-1)-4,2*2=3,2+7-8,4=1,8
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Answers & Comments
Verified answer
-a-b-(-a+x)+(b-y)=-a-b+a-x+b-y=-x-yпри х=-4 у=-8,6
-х-у=-(-4)-(-8,6)=4+8,6=12,6
-4(-0,8+2у)-(4,2х-у)=3,2-8у-4,2х+у=3,2-7у-4,2х
при х=2 у=-1
3,2-7(-1)-4,2*2=3,2+7-8,4=1,8