1) 8х-5у-7у=8х-12у
2)1.5х+2у-3х-у=у-1.5х
3)-0.24+1.25n+0.12+1.25n=-0.12+2.5n
4)(-0.3x+2)-(5-0.2x)=-0.3x+2-5+0.2x=-0.1x-3
5)0.2-(3y-0.8)+4=0.2-3y+0.8+4=5-3y
6)-3(2.4-0.1x)+2.7x=-7.2+0.3x+2.7x=-7.2+3x
7)(-21)(x+у)-3(х-у)=-21х-21у-3х+3у=-24х-18у
8)-2n(2m-1)+(6-2n)(-m)=-4mn+2n-6m+2mn=2n-6m-2mn
9)4(3-0.4х)-2(0.6х+3)=12-1.6х-1.2х-6=6-3х
10)b-(2b+(3b-4))=b-2b-3b+4=-4b+4
1) 8х-5у-7у=8х-12у
2)1.5х+2у-3х-у=у-1.5х
3)-0.24+1.25n+0.12+1.25n=-0.12+2.5n
4)(-0.3x+2)-(5-0.2x)=-0.3x+2-5+0.2x=-0.1x-3
5)0.2-(3y-0.8)+4=0.2-3y+0.8+4=5-3y
6)-3(2.4-0.1x)+2.7x=-7.2+0.3x+2.7x=-7.2+3x
7)(-21)(x+у)-3(х-у)=-21х-21у-3х+3у=-24х-18у
8)-2n(2m-1)+(6-2n)(-m)=-4mn+2n-6m+2mn=2n-6m-2mn
9)4(3-0.4х)-2(0.6х+3)=12-1.6х-1.2х-6=6-3х
10)b-(2b+(3b-4))=b-2b-3b+4=-4b+4