Question 986184
The breakeven point comes when the cost equals the revenue. This is when you neither make nor lose money


R(x) = C(x)
12000x = 4000x+88000
12000x-4000x = 4000x+88000-4000x
8000x = 88000
8000x/8000 = 88000/8000
x = 11


The breakeven point is at x = 11. So 11 units need to be sold to break even.