Solve the absolute value inequality Express the answer using
Solve the absolute value inequality. Express the answer using interval notation. 6|x + 9| + 8 > 4
Solution
6|x + 9| + 8 > 4
6|x + 9| > 4 - 8
6|x + 9| > -4
|X + 9| > -4/6
|x + 9| > -2/3
Do we even need to solve further?
Lets check
We have an absolute value |x + 9| on the left
On the right, we have a negative number, -4
We know that no matter what |x + 9| > -4 ALWAYS
So, x ---> all real numbers
So, answer :
x = (-inf , inf)
