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2,5+1 SUPRA4 X=5 REZOLVATI Q

Răspuns :

2,5 + [tex] \frac{1}{4} x = 5[/tex] 

transformam 2,5 in fractie = [tex] \frac{25}{10}[/tex]

[tex]\frac{25}{10} + \frac{x}{4} = 5[/tex]  aducem la numitor comun 20

[tex]\frac{50}{20} + \frac{5x}{20} = \frac{100}{20} [/tex]  scapam de numitor

50 + 5x = 100
 
5x = 100 -50

5x = 50

x= 50: 5

x= 10