Question

et.x x supra 20 = 7 supra 2"

Answer 1

$\frac{x}{20} = \frac{7}{2} \\ x= \frac{7}{2} *20 \\ x=3,5*20 \\ \boxed{x=70}.$

Answer 2

x/20= 7/2
x= 20 * 7 =140 = 70
          2         2
sper ca te-am ajutat