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musiclover10045

Answer:

Let the weight of the leader dog = X

Then Darlene's dog weighs = 5X ( fives times as much)

Now add both together to equal 84 pounds:

5X + X = 84


Simplify:

6x = 84

Divide both sides by 6:

x = 84 / 6

x = 14


The leader dog weighs 14 pounds.

Darlene's dog weighs 70 pounds.