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Alexionutz2001
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1supra4-x=0,1

Răspuns :

Dmihaela87
[tex] \frac{1}{4} -x= \frac{1}{10} \\ \frac{5-20x}{20} =2 \\ 5-20x=40 \\ -20x=35 \\ x= \frac{35}{-20} = \frac{7}{-4} [/tex]
Vlad2000
1/4 -x = 1/10
1/4 -1/10 =x
x= ( 5-2) /20
x= 3 / 20 (sau x= 0,15)

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