Question

2. Afla termenul necunoscut.
a. 10x7+819-5xa=899
b. 36:6+2910-bx4=2884
Repde dau coroana ​

Answer 1

Răspuns:

2.a.70+819-5×a=899

889-5×a=899

-5×a=899-889

-5×a=10

a=-2

b.6+2910-bx4=2884

2916-bx4=2884

-bx4=2884-2916

-bx4=-32

-b=-6

coroana?????