Răspuns :
Răspuns:
2/3×x-1/5=3/10
¹⁰⁾2x/3-⁶⁾1/5=³⁾3/10
20x-6=9
20x=9+6
x=(15/20)⁽⁵=>x=3/4=>x=0,75
verificare:
2/3·3/4-1/5=⁵⁾1/2-²⁾1/5=5/10-2/10=3/10
Răspuns:
2/3×x-1/5=3/10
¹⁰⁾2x/3-⁶⁾1/5=³⁾3/10
20x-6=9
20x=9+6
x=(15/20)⁽⁵=>x=3/4=>x=0,75
verificare:
2/3·3/4-1/5=⁵⁾1/2-²⁾1/5=5/10-2/10=3/10