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9×(7×h-11-7)÷2=90 Ajutor rezolvatio !!! Dau coroana

Răspuns :

TheBestHacker
[tex]9*(7*h-11-7):2 = 90 /*2 9*(7*h-11-7) = 180/:9 7*h-18 = 20/+18 7*h = 38/:7 h=38/7 [/tex]
Rayzen
[tex]9\times(7\times h-11-7)\div2=90\\ \\ (7\times h-18)\div 2 = 90\div 9 \\ \\ (7\times h-18)\div 2 = 10\\ \\ (7\times h -18 = 10\times 2 \\ \\ 7\times h-18 = 20 \\ \\ 7\times h = 38 \\ \\ h = \dfrac{38}{7} \\ \\ h = 5,(428571)[/tex]

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