List all the solutions of the equation
|8w+4| = 68
.

Question

List all the solutions of the equation
|8w+4| = 68
 .

dumbcow · Answer

set up 2 cases
8w+4 = 68                        
and
8w+4 = -68

anonymous · Answer

but how do i find W?

dumbcow · Answer

get it by itself on left hand side by canceling everything else
ex:

8w+4 = 68
to cancel out the addition of 4 i subtract 4 on both sides
8w +4 = 68
      -4      -4
_____________
8w  +0 = 64
cancel out multiplication of 8 by dividing by 8 on both sides
8w/8 = 64/8
w = 8

make sense?

anonymous · Answer

kind ok...so there are 2 solutions.... 8, -8 right?

anonymous · Answer

kind of*

dumbcow · Answer

not quite, its not always just the negative of the answer for first one
remember there were 2 case
follow same steps to find w again for
8w +4 = -68

anonymous · Answer

so -9, and 8?

dumbcow · Answer

yes correct
:)