160k views
3 votes
Solve for x: |4x + 12| = 16

User Albion
by
8.7k points

2 Answers

4 votes
4x + 12 = 16
(4x1) +12 = 16

X = 1
User Wason
by
7.5k points
2 votes
|4x + 12| = 16
As it is in modulus function, it could be either +ve or -ve
4x+12 = 16 OR 4x - 12 = 16
4x = 16-12 OR 4x = 16 + 12
4x = 4 OR 4x = 28
x = 4/4 OR x = 28/4
x = 1 OR x = 7

In short, Your Answer would be either 1 or 7

Hope this helps!
User Funke
by
8.2k points