Question

j) [(25:x+20:x): 3] +5=8. va rog repede​

Answer 1

Răspuns:

x=2.250

Explicație pas cu pas:

j) [(25:x+20:x):3]+5=8

(25:x+20:x):3=8-5

(25:x+20:x):3=3

25:x+20:x=3×3

25:x+20:x=9

x+20:x=25×9

x+20:x=225

2x=225×20

2x=4.500

x=4.500:2

x=2.250