repede daca se poate va rog mult

Repede Daca Se Poate Va Rog Mult class=

Răspuns :

Răspuns

a) x=8

b) x=0

c) x=1/12

d) x=12

a)x=3×5. /=supra , fractie
x=15
b)2x=0,(2)×0,(3)
2x=2/9×3/9
2x=6/81 simplificam fracția prin 3
2x=2/27
x=2/27:2
x=2/27×1/2
x=1/54
c)3x=0,5×1/2
3x=5/20
x=5/20÷3
x=5/20×1/3
x=5/60
d)1/4×x=2×3/2
1/4×x=6/2
x=6/2÷1/4
x=6/2×4/1
x=24/2