А. 3,75*х = 104 *50/10*13
3,75х = 104*5/13
3,75х = 520/13
3,75х=40
х=40*100/375 =40*4/15 =8*4/3 = 32/3 = 10ц 2/3
б. 55*х/6 = 825*24/16*5
55*х/6= 165*6/4
х = 165*6*6/55*4 = 165*36/55*4
х = 3*9 =27
в. 72*4х=21*96
72*4х=2016
4х=2016/72
4х=28
х=7
г. 0,36*0,63=0,8х*0,105
0,2268=0,8х*0,105
0,8х=2,16
х=2,16/0,8
х=2,7
д. х+1/16 = 3,75/14
х = 3,75/14-1/16
х= (3,75*16-1*14)/224
х=(60-14)/224
х = 46/224
х = 23/112
е. 3*х*52/10 *3 = 39 *8/4*15
х*26/5 = 13*2/5
х*26/5 = 26/5
х = 26*5/26*5
х=1