Question

a) x supra 5 = x+2 supra 15 b) 2x-1 supra x+3 = 5 supra 6 Aflati nr. natural X Multumesc !

Answer 1

A)X/5=(x+2)/15 x15
3x=x+2
3x-x=2
2x=2 => x = 1

B) (2x-1)/(x+5)=5/6
6(2x-1)=5(x+5)
12x-6=5x+25
7x=31. X=7/31

Answer 2

a)x/5=x+2/15⇒15x=5x+10⇒15x-5x=10⇒10x=10⇒x10/10⇒x=1
b)2x-1/x+3=5/6⇒5(x+3)=6(2x-1)⇒5x+15=12x-6⇒-12x-+5=-15-6⇒-7x=-21⇒x=-21/-7⇒x=3
sucees