Question

Anyone know how to do this ?

Answer 1

x=1 or x=-1

Explanation:

`y=3-|x|\\`

`\left \{ {{x>0, x} \atop {x<0, -x}} \right.`

`\left \{ {{2=3-x} \atop {2=3+x}} \right. \\`

`x=1\\or\\x=-1`

Answer 2

x=1

Explanation:

x=?

y=3-|x|

y=2

2=3-|x|

x=1