Answer:
-34
Step-by-step explanation:
a + b = -6
x + y + z = -2
We want 8a so multiply the first equation by 8
8( a + b) = -6*8
8a+8b = -48
We also want -7x so multiply the second equation by -7
-7(x + y + z) = -2*-7
-7x-7y-7z = 14
Add the two equations together
8a+8b = -48
-7x-7y-7z = 14
-------------------------
8a+8b-7x-7y-7z = -34
Rearranging the order
8a - 7x - 7z - 7y + 8b = -34
The equation that you are looking for is y = -2x + 3
Answer:6
Step-by-step explanation:
500/12 is 41 so therefore you do 48/12 is 6.
Answer:
Step-by-step explanation:
![5x^2-20y^2\\=5(x^{2} -4y^2)\\=5[x^{2} -(2y)^2]\\=5(x+2y)(x-2y)](https://tex.z-dn.net/?f=5x%5E2-20y%5E2%5C%5C%3D5%28x%5E%7B2%7D%20-4y%5E2%29%5C%5C%3D5%5Bx%5E%7B2%7D%20-%282y%29%5E2%5D%5C%5C%3D5%28x%2B2y%29%28x-2y%29)
