0,9х+3/4х-1.15х при х =3

Question

0,9х+3/4х-1.15х при х =3

Answer 1

0,9х+3/4х-1.15х              при  х=3
9/10х+3/4х-115/100х=9/10х+3/4х-115/100х=0,9х+0,75х-1,15х=0,5х=0,5*3=1,5