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Georgiana10
a fost răspuns

 URGENT!!!1) Calculati: 2x supra 15 + 3x supra 5 + 1,(6)x -0,4x - x = 
Transformarea in fractie : 3,7 

Răspuns :

prima cerinta  [tex] \frac{2x}{15} + \frac{3x}{5}+ \frac{15x}{9} - \frac{4x}{10} - x= \frac{2x}{15} + \frac{3x}{5}+ \frac{5x}{3} - \frac{2x}{5} -x  = \frac{2x+9x+25x-6x-15x}{15}= \frac{15x}{15} [/tex]=x

a 2-a cerinta 3,7 = [tex] \frac{37}{10} [/tex]

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