Question

упростите выражения 9,4х+(2х-11 3/4у)-3 5/9у; 2 1/6х-(7х-1 3/4у)+2 1/4у; 3,5х+6 1/4х-7у)-7у

Answer 1

1)11.4x+2x-11 3/4y-3 5/9y=11,4x-11 3/4y-3 5/9y=11.4x-15 11/36y 2)-4 5/6x+1 3/4y+2 1/4y=-4 5/6x+4y 3)3.5x+6 1/4x-7y-7y=9 3/4x-7y-7y=9 3/4x-14y