We define the variables:
• c = # of cats,
,
• d = # of dogs.
From the statement, we know that:
0. there are twice as many dogs as there are cats,
,
1. there are d = 24 dogs.
From point 1, we have the equation:
Replacing the # of dogs d = 24, we have:
We solve for c by dividing both sides by 2, we get:
Answer
• Equation: ,24 = 2c
,
• Solution:, c = 12