Question

[(3500:x+5):3-56]x5=20

Answer 1

Răspuns:

[(3500:x+5):3-56]x5=20

(3500:x+5):3-56=20:5

(3500:x+5):3=4+56

3500:x+5=60·3

3500:x=180-5

x=3500:175

x=20

Answer 2

Răspuns:

((3500:x+5):3-56)=20:5

                           =4

(3500:x+5):3=4+56

                     =60

3500:x+5=60x3

               =180

3500:x=180-5

3500:x=175

x=3500:175

x=20

Explicație pas cu pas: