Question

10×{24-[20-(5×a-3)]:2}=150​

Answer 1

Răspuns:

10×{24-[20-(5×a-3)]:2}=150

{24-[20-(5×a-3)]:2}=150:10

24-[20-(5xa-3)]:2=15

[20-(5xa-3)]:2=24-15

[20-(5xa-3)]:2=9

[20-(5xa-3)]=9x2

20-(5xa-3)=18

(5xa-3)=20-18

5xa-3=2

5xa=2+3

5xa=5

a=5:5

a=1

Answer 2

Răspuns:

a = 1

Explicație pas cu pas:

10×{24-[20-(5×a-3)]:2}=150

24-[20-(5a-3)]:2 = 15

24-(20-5a+3):2 = 15

24-(23-5a):2 = 15

48-(23-5a) = 30

48-23+5a = 30

25+5a = 30

5a = 30-25

5a = 5

a = 5:5

a = 1