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=100 3/8*х=100-25 3/8*х=75 x=75*8/3 x=200 2).1/9*х-20=56 1/9*х=56+20 1/9*х=76 x=76*9 x=684 3).7/15*х-503/4=491/4 7/15*х=503/4+491/4 7/15*х=497/2 x=497/2*15/7 x=1065/2 4).40-3/8*х=351/2 3/8*х=40-351/2 3/8*х=-271/2 x=-271/2*8/3 x=-1084/3 5).(24/5*х-50):2/3=51 (24/5*х-50)=51*2/3 (24/5*х-50)=34 24/5*х=84 x=35/2 6).(41/2-2*х)*32/3=11/15 (41/2-2*х)=11/15*3/32 (41/2-2*х)=11/160 2x=41/2-11/160 2x=3269/160 x=3269/320 x=10 69/320