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Aflati x din proportia 2x supra 7=3 supra 35


Răspuns :

2x/7=3/35
2x= 7*3/35
2x=21/35
x=21/35*2
x=21/70
Qwertm
[tex] \frac{2x}{7} = \frac{3}{35} \\ 2x * 35 = 7 * 3 | :7 \\ 2x * 5 = 3 \\ 10x=3 \\ x= \frac{3}{10} [/tex]