Question

TEMĀ
2) Află numărul necunoscut:
a) 52 + 17 + 18 = a + 17 + 18
15 + b + 36 = 36 + 18 + 15
25 + C-25 = 18 + 36
b + 28- 28 = 51 - 37
a + 12 + 8 = 51
b) C-12 - 38 = 24
d - 7 - 38 = 13
12 + 19 = 50 - C
37 - a = 84 - 69
b- 9 = 27 + 18
15+ d = 73 - 15
13 + C + 17 = 80
36 + 8 + d = 74
26 + 15 + e = 90
e-21 - 59 = 14
f-25 – 18 = 7
c) b-28 + 15 – 18 + 46 = 51
23 5
32- a + 41 – 19 = 38
45 - 38 + C - 18 +49 = 61
25 + n - 48 + 19 = 32
a - 15 - 36 + 28 - 19 = 48
72 - m - 15 + 33 = 62

Answer 1

Răspuns:

52+17+18=a+17+18

a=+17+18-18-17+52

a=52

15+b+36=36+18+15

b=+36+15-36-18-15

b=18

25+c-25=18+36

c=-25+25-18+36

c=0-18+36

c=18

b+28-28=51-37

b=+28-28-51+37

b=-51+37

b=14

a+12+8=51

a=12+8-51

a=31

B

c-12-36=24

c=12-36-24

c=-60+12

c=48

d-7-38=13

d=7-38-13

d=-51+7

d=44

12+19=50-c

c=50-19-12

c=50-31

c=19

37-a=84-69

a=37-84+69

a=37-15

a=22

b-9=27+18

b=-8-27-18

b=53

15+d=73-15

d=15-73+25

d=-73+40

d=33

13+c+17=80

c=13+17-80

c=30-80

c=-50

36+8+d=74

d=36+8-74

d=44-74

d=30

26+15+e=90

e=26+15-90

e=41-90

e=-49

e-21-59=14

e=21-59-14

e=21-73

e=52

f-25-16=7

f=25-16-7

f=25-23

f=2

C

b-28+15-18+46=51

b=28+15-18+46-51

b=20

32-a+41-19=38

a=32+41-19-38

a=73-57

a=16

45-38+c-18+49=61

c=45-38-18+49-61

c=94-117

c=23

25+n-48+19=32

n=25-48+19-32

n=44-80

n=36

a-15-36+28-19=48

a=15-36+28-19-48

a=43-103

a=60

72-m-15+33=62

m=72-15+33-62

m=105-77

m=28

Explicație pas cu pas:

sper sa te fi ajuta și scuze că mi-a luat atât timp