B. Is the correct answer because it gives you what your asking for and vivid detail
3x + 7 = x - 15
First, make sure to subtract

from both sides.
Second, simplify 3x - x to get 2x, and then keep the 7.
Third, subtract

from both sides.
Fourth, simplify -15 - 7 to get -22.
Fifth, take the 2 and divide both sides by it, keeping the

by itself.
Sixth, since 11 goes into 2 to get 22, simplify the fraction to 11.

Answer:
x = -11
Using the plate method for portioning food will enable the patient to receive all of the required daily nutrients and the amount of each food item. This method enables for a simple measure of the amount of food that should be served , so yh have a great day !
The pronoun in the sentence is 'they'.
This pronoun repleaces the words 'dogs and cats'.