Which is a correct first step for solving this equation?

−5(4−7)+8=3

-5(4x -7) +8 = 3x

-20x + 35 + 8 = 3x

Step-by-step explanation:

ImaGine maTh

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.  

answer: 12

step-by-step explanation:

because yes