Question

Ex:62


Va rog frumos ajutati-ma!!!!!
Dau coroana!!
Si 10 puncte!

Va rog frumos!!!
Am nevoie de rezultate astazi!!!!

Answer 1

a)786+a:18=1416/×18
786+a=25488/-786
a=24702
b)900:a+72×5=380
900:a+360=380/-360
900:a=20/-900
a=-898
c)(713+a)×39-15×589=29580
(713+a)×39-8835=29580/+8835
(713+a)×39=38415/:39
713+a=985/-713
a=272
d)(1404:a+392):25=20/×25
1404:a+392=500/-392
1404:a=108/-1404
a=-1296
e)(a-63500):175=100/×175
a-63500=17500/+63500
a=81000
f)917-a×9=593/:9
917-a=65/-917
a=-851
g)(a×65+415):1000=1/×1000
a×64+415=1000/-415
a×64=585/:64
a=9
h)6×a-(13×47+895)=1200
6×a-(611+895)=1200
6×a-1506=1200/+1506
6×a=2706-6
a=2700
i)(a-613)×12-4524=51×100
(a-613)×12-4524=5100/+4524
(a-613)×12=9624/:12
a-613=802/+613
a=1415
j)(a+847:7)×30-3230=610×4
(a+121)×30-3230=2440/+3230
(a+121)×30=5670/:30
a+121=189/-121
a=68
SPER CA E DE FOLOS

Answer 2

a) 786+a:18 = 1416
a:18 = 1416-786
a:18 = 630
a = 630×18
a = 11 340

b) 900:a+72×5 = 380
900:a = 380-360
900:a = 20
a = 900:20
a = 45

c) (713+a)×39-15×589 = 29580
(713+a)×39-8835 = 29 580
(713+a)×39 = 29 580 + 8 835
(713+a)×39 = 38 415
713+a = 38 415:39
713+a = 985
a = 985-713
a = 272

d) (1404:a+392):25 = 20
1404:a +392 = 25×20
1404:a = 500-392
a = 1404:108
a = 13

e) (a-63500):175 = 100
a-63500 = 100×175
a = 17500+63500
a =81 000

f) 917-a×9 = 593
a×9 = 917-593
a×9 = 324
a = 324:9
a = 36

g) (a×65+415):1000 = 1
a×65+415 = 1000
a×65 = 1000-415
a×65 = 585
a = 585:65
a = 9

h) 6×a-(13×47+895) = 1200
6×a-(611+895) = 1200
6×a - 1 506 = 1200
6×a = 1 200+1 506
6×a = 2706
a = 2 706:6
a = 451

i) (a-613)×12-4524 = 51×100
(a-613)×12 = 5 100+ 4 524
(a-613)×12 = 9 624
a - 613 = 9 624:12
a-613 = 802
a = 802+613
a = 1 415

j) (a+847 : 7)×30 - 3 230 = 610×4
(a+847 : 7)×30 - 3 230 = 2 440
(a+121)×30 = 2 440 + 3 230
(a+121)×30 = 5 670
a+121 = 5 670 :30
a + 121 = 189
a = 189-121
a = 68