Question

What is the solution set for |3x + 12|+ 5 = 23?

x = 2 and x = 10

x = –2 and x = 10

x = –2 and x = –10

x = 2 and x = –10

Answer 1

1) subtract 5 and get
\[|3x+12|=18\]
2) make two equations
\[3x+12=-18\] and
\[3x+12=18\] and solve those

Answer 2

|3x + 12|+ 5 = 23
|3x + 12| =18

3x+12 = 18, 3x + 12= -18
3x = 6, 3x= -30
x = 2, x= -10

Answer 3

each takes exactly two steps, and they aer the same
1) subtract 12
2) divide by 3

Answer 4

so D

Answer 5

Mhmm :)