Question

1)0,2(5x-5y)+8,3x
2)1,5(4a+3b)+9,5b
3)3,5(3m+2n)-4n
4)2,3(8a+12b)-4a
5)3,1(4m-2n)+4,8(2m+4n)

Answer 1

1)0,2(5x-5y)+8,3x=х-у+8,3х=9,3х-у
 2)1,5(4a+3b)+9,5b=6а+4,5b+9,5b=6а+14b
3)3,5(3m+2n)-4n=10,5m+7n-4n=10,5m+3n
4)2,3(8a+12b)-4a=18,4а+27,6b-4а=14,4а+27,6b
5)3,1(4m-2n)+4,8(2m+4n)  =12,4m-6,2n+9,6m+19,2n=22m+13n

Answer 2

огромное спасибо!