Question

Solve |2x+5| =15

Need help please!!!

Answer 1

applying absolute law

if |u|=a, a>0 then u=a or u=-a

2x+5=15 or 2x+5=-15

2x=15-5 or 2x=-15-5

2x=10 or 2x=-20

x=5 or x= -10