The answer is 5 If you dont like this you first see what you can multiple to get to 15 first.
-5y+6x=40
.75(3y-8x)=.75(46)
-5y+6x=40
2.25y-6x=34.5
-2.75y=5.5
Y=-2
———
3(-2)-8x=46
-6-8x=46
+6 +6
-8x=52
X=-6.5
(-6.5,-2) is the answer
Answer:
95 is the answer I took the test
Answer:
Step-by-step explanation:
![~~~2x^3y-2y\\\\=2y(x^3-1)\\\\=2y(x-1)(x^2+x+1)~~~~~~~~~~;[a^3-b^3 = (a-b)(a^2 +ab+b^2)]](https://tex.z-dn.net/?f=~~~2x%5E3y-2y%5C%5C%5C%5C%3D2y%28x%5E3-1%29%5C%5C%5C%5C%3D2y%28x-1%29%28x%5E2%2Bx%2B1%29~~~~~~~~~~%3B%5Ba%5E3-b%5E3%20%3D%20%28a-b%29%28a%5E2%20%2Bab%2Bb%5E2%29%5D)
