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Efectuati 9supra 4 impartit la x minus 1,5egal cu 0

Răspuns :

[tex] \frac{9}{4} :x-1,5=0[/tex]
[tex] \frac{9}{4} * \frac{1}{x} - \frac{15}{10} = 0[/tex]
[tex] \frac{9}{4x} = \frac{15}{10} [/tex] faci rapoarte egale, adica
9*10=15*4x
90=60x
60x=90 |:10
6x=9 |:3
2x=3 |:2
[tex]x = \frac{3}{2} [/tex]
x=1,5