X+5supra3=-1supra2 multumesc

Răspuns :

x+5/30=1/2
x+5=30/2
x+5=15
x=15-5
x=10
/ inseamna supra!!!
x + 5/3 = -1/2
x = -1/2 - 5/3
x = -3/6 - 10/6
x = -(3/6+10/6)
x = -13/6