l x-2 l =< 3
Then we
have two cases:
(x-2) =< 3 OR -(x-2) =
< 3
Let us solve each
case:
case (1):
x-2 =<
3
add 2 to both
sides:
==> x =<
5
==> since x is an integer,
Then:
x= { -inf, ....,
-1,0,1,2,3,4,5}.........(1)
Case(2):
-(x-2)
=< 3
==> -x + 2 =<
3
subtract 2 :
==> -x
=< 1
Now multiply by
-1:
==> x >=
-1
==> x= { -1, 0, 1, ....,
inf}.........(2)
Now the solution
is:
x = (1) and
(2)
==> x = { -1, 0, 1, 2, 3, 4,
5}
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