So:
Let us simply the parenthesis first.
So we have

We can rearrange the terms and get:

Which is equal to

So now we have to complete it by multiplying it all by 1/4 which is basically dividing it by 4.
So:

Simplifying that, we get:

And reducing that farther we finally get:

Which is your final answer :)
Answer: 8. There were 11 pieces and 3 were used, so 8 are left.
Answer:
x = -5 ; y= -1
Step-by-step explanation:
10y = -10
y = -1
-8x = 44 -4
-8x = 40
x = -5
Yes! that would be an isosceles triangle.