Answer:
-3
Step-by-step explanation:
I'm not sure what the 0s are all about, but I can help with the equation;
To do this, we can do substitution. By equaling x-4 to 3x+2, we get
x-4=3x+2
By isolating the x, we get
-2x=6
x=-3
Hope this helped!
Answer:
Part A:the sum of Side 1 and Side 2= 5x^2+7x-4 Part B all you have to do is the same thing, but subtract the sum of side 1 and 2 from the total. part c they are closed under subtraction.
Step-by-step explanation:

