Question

Упростить 5/9(3,6а-3 3/5b)-3,5(4,7a-0,2b)

Answer 1

$<var>\frac{5}{9}(3,6a-3\frac{3}{5}b)-3,5(4,7a-0,2b)=\frac{5\cdot36}{9\cdot10}a-\frac{5\cdot18}{9\cdot5}b-3,5\cdot{4,7a}+3,5\cdot{0,2b}=2a-2b-16,45a+0,7b=-14,45a-1,3b</var>$