Question

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

Answer 1

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