Question

Va rog am nevoie de exercitiile 22 si 23
DAU COROANA
​

Answer 1

Explicație pas cu pas:

,..,.,.,.,.,.., . .,. .. .

Answer 2

Răspuns:

22.

a) x= 6x2 :4= 12:4= 3

b) x= 9x4 :3= 36:3= 12

c)x= 6x10 :4= 60:4=15

d) x= 8x10:5= 80:5= 18

e) x= 14x5:7= 70:7=10

f)x= 6x11:10= 66:10= 6, 6

g)x= 24x7:6= 4x7= 28

h)x=15x9:5=3x9= 27

23.a) 5(x-1)= 4x   5x-5= 4x     5x-4x=5   x= 5

b) 2x= x+3     2x-x=3      x=3

c) 5x= 2(x+4)     5x= 2x +8

5x-2x= 8     3x =8   x= $\frac{8}{3}$