X + 2x + x + 10 = 90
4x = 80
x = 20
Answer:
b) 42,610
Step-by-step explanation:
46089 - 3479 = 42610
Your answer would be option B. 2y² - y - 6 = 0. This is because if you were to substitute x = y² - 1 into the equation 2x - y = 4, you would get 2(y² - 1) - y = 4, which expands into 2y² - 2 - y = 4, and then simplifies to 2y² - y - 6 = 0.
I hope this helps!
<span>The answer should be (12x + 20) (2x + 5)</span>
