Answer:
5
Step-by-step explanation:
- The ones with the x always go on the left side and the ones without x always go on the right side.
- Every time they change side + changes into - and the other way around.
So now it looks like this 7x + 6x = -42 - 23. When you solve 7x +6x and - 42- 23 it should look like this 13x = -65 now all you need to do is to divide 65 with 13 and you'll get x = 5.
I hope this helps :)
