Răspuns :

Vilcusilvia3086id

Explicație:

(12+a)+38=100. (b+602)+62=1664

12+a=100-38. b+602=1664-62

12+a=62. b+602=1602

a=62-12=50. b=1602-602=1000

(200-c)-15=85. (d-7)-63=500

200-c=85+15. d-7=500+63

200-c=100. d-7=563

c=200-100=100. d=563+7=570

(700-e)+17=414. (f-123)+23=900

700-e=414-17. f-123=900-23

700-e=397. f-123=877

e=700-397=303. f=877+123=1000

Sisi12345679id

(12+a)+38=100

12+a=100-38=62

a=62-12

a=50

(b+602)+62=1664

b+602=1664-62=1602

b=1602-602

b=1000

(200-c)-15=85

200-c=85+15=100

c=200-100

c=100

(d-7)-63=500

d-7=500+63=563

d=563+7

d=570

(700-e)+17=414

700-e=414-17=397

e=700-397

e=303

(f-123)+23=900

f-123=900-23=877

f=877+123=

f=1000

PS. Poti face su verificarea.pui rezultatul in locul necunoscute-i. Dacă nu înțelegi imi spui in comentarii

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