1) -4,2х -4,2×3,5=-14,7
2) 1,8х-2,2у 1,8×(-1 1/9)-2,2×(-4/11)=-1/5-4/5=-5/5=-1
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Answers & Comments
1) -4,2х -4,2×3,5=-14,7
2) 1,8х-2,2у 1,8×(-1 1/9)-2,2×(-4/11)=-1/5-4/5=-5/5=-1