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ajutati.ma va rog. am y supra 2 plus 4 supra 2 egal 13, y egal cat

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Andreutzakriss
[tex] \frac{y}{2}+ \frac{4}{2}=13 \\ \\ \frac{y}{2}+2=13 \\ \\ \frac{y}{2}=11 \\ \\ y=11*2 \\ \\ y=22 [/tex]
[tex] \frac{y}{2} + \frac{4}{2} =13.(aducem~tot~la~acelas~numitor~si~scapam~de~el)\\ \frac{y}{2} + \frac{4}{2} = \frac{13*2}{2} \ \textless \ =\ \textgreater \ y+4=26=\ \textgreater \ y=26-4=\ \textgreater \ =22\\ Proba \frac{22}{2} + \frac{4}{2} =13\\ ~~~~~~~~~~~~~~~11+2=13\\ ~~~~~~~~~~~~~~~13=13[/tex]

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