Anyone know how to do this ?

Answer:
x=1
Step-by-step explanation:
x=?
y=3-|x|
y=2
2=3-|x|
x=1
Answer:
x=1 or x=-1
Step-by-step explanation:
[tex]y=3-|x|\\[/tex]
[tex]\left \{ {{x>0, x} \atop {x<0, -x}} \right.[/tex]
[tex]\left \{ {{2=3-x} \atop {2=3+x}} \right. \\[/tex]
[tex]x=1\\or\\x=-1[/tex]