6x+7=4x+4y complete the missing value )

x = 4.5

Step-by-step explanation:

6x+7=4x+4y

The first step is to simplify the equation by combining the x terms

Subtract 4x from each side

6x-4x +7 = 4x-4x+4y

2x+7 = 4y

We know the y value is 4

Substitute y=4 into the equation

2x+7 = 4(4)

2x+7 =16

Subtract 7 from each side

2x+7-7 =16-7

2x=9

Divide by 2

2x/2 =9/2

x= 4.5

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.