Answer:
B.
Step-by-step explanation:
In the attached file
3n-3x-15 You have to add the like terms.
(-∞,-4.196)∪(-4.196,-3)∪(-3,-1)∪(-1,0)∪(0,∞)
Step-by-step explanation:



First you would subtract x from both sides to move all the x's to one side
Then you would add 4 to both side to move all the non x's to one side
Lastly divide by negative 15 to have x by itself
9/-15 =-.6
So x as has root at x=-0.6