👤

2x supra 3 + 2x + 10grade = 90 de grade
x=?
Ajutati-ma , va rog !!!!
DAU COROANA !!!


Răspuns :


[tex] \frac{2x}{3 + 2x + 10} = 90[/tex]
2x =270+180x+90
-178x=360
x=-360:178
x=-2.02