найти х, если:
3/8*х+25=100
1/9*х-20=56
7/15*х-503/4=491/4
40-3/8*х=351/2
(24/5*х-50):2/3=51
(41/2-2*х)*32/3=11/15

1). 3/8*х+25=1003/8*х=100-253/8*х=75x=75*8/3x=2002).1/9*х-20=561/9*х=56+201/9*х=76x=76*9x=6843).7/15*х-503/4=491/47/15*х=503/4+491/47/15*х=497/2x=497/2*15/7x=1065/24).40-3/8*х=351/23/8*х=40-351/23/8*х=-271/2x=-271/2*8/3x=-1084/35).(24/5*х-50):2/3=51(24/5*х-50)=51*2/3(24/5*х-50)=3424/5*х=84x=35/26).(41/2-2*х)*32/3=11/15(41/2-2*х)=11/15*3/32(41/2-2*х)=11/1602x=41/2-11/1602x=3269/160x=3269/320x=10 69/320