3x - y - 7 6x - y - 10
When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated?
-)))
A)
9x - 2y - 17
B)
-3y - 24
0
-3x - 3
D)
9x - 17

3x-y-7 - 6x-y-10 would leave you with -3x-3

Step-by-step explanation:

When subtracting 6x-y-10 from 3x-y-7, 3x - 6x would leave you with -3x. -y and -y would cancel out. lastly, -7 - (-10) is equal to -3. When putting all of this together, you are left with -3x-3.

answer: 1) twenty-seven times y

              2) twenty-seven multiplied by y

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.