Question

http://prntscr.com/66l3gy need help?

Answer 1

@Directrix

Answer 2

You understand up to the last step, right? \[3x-4=3x+4\]

Answer 3

If you try to isolate the x's and the constants to either side of the equation, first by subtracting \(-3x\) from both sides and then adding \(+4\) to both sides of the equation, what will you get/

Answer 4

Looking at the graph might also provide a little insight.

Answer 5

https://www.desmos.com/calculator/ozfi50o0jo