Răspuns:
a)
(x+24+100-600+50-180):2=60
x+24+100-600+50-180=60•2=120
x+24+100-600+50=120+180=300
x+24+100-600=300-50=250
x+24+100=250+600=850
x+24=850-100=750
x=750-24=726
b)
(a:10x8:22-4)x5:20=25
(a:10x8:22-4)x5=20x25=500
a: 10x8:22-4=500:5=100
a: 10x8:22=100+4=104
a: 10x8=104x22=2288
a:10=2288:8=286
a=286x10=2860
c)
(4625:b+1995):1000+98=100
(4625:b+1995):1000=100-98=2
4625:b+1995=2x1000=2000
4625:b=2000-1995=5
b=4625:5=925
d)
[(2960:x-11):7+990]:111=9
(2960:x-11):7+990=9x111=999
(2960:x-11):7=999-990=9
2960:x-11=9x7=63
2960:x=63+11=74
x=2960:74=40
