Question

is. Allă necunoscuta. Calculează în scris pe caiet.
1 439 : a = 27 rest 8 (7 435 + c): 45 = 342 rest 12
(e-2987): 56 = 765 rest7
449 : b = 20 rest 9
(2985+ d): 38 = 452 rest 28
(f-3543): 36 = 276 rest 9
50​

Answer 1

Răspuns:

1439:a=27rest 8

1439-8=27×a

1431=27a=>a=1431:27=53

(7435+c):45=342rest12

7435+ c-12=342×45

c=342×45+12-7435

c=7967

(e-2987):56=765rest7

(e-2987)-7=765×56

e=765×56+2987+7

e=45834

449:b=20rest9

449-9=20b

440=20b=>b=440:20=22

(2985+d):38=452 rest 28

(2985+d)-28=452×38

2985+d-28=17176

d=17176-2985+28=14477

(f-3543):36=276rest9

(f-3543)-9=276×36

f-3543-9=9936

f=9936+3543+9=>f=13488