X:3,2+4,75=9 2/5 комектесинишзи

Question

X:3,2+4,75=9 2/5 комектесинишзи

Answer 1

Х:3,2+4,75=9 2/5
10/32 х +4 3/4= 9 2/5
5/16 х +19/4 = 47/5
19/4-47/5=-5/16х
5/16х=188\20 - 95/20
5/16х= 93\20
80 * 5/16х = 93/20 *80
25х = 372
х=14,88