Kate has 78 foreign stamps; she has 15 less than twice as many Philippine stamps. How many stamps has she?

Kate has 78 foreign stamps; she has 15 less than twice as many

78 + (2 * 78) -15 = s

? = s

are you sure that your answer is correct,where those the 2*78 comes from???

I am not sure

To find out how many stamps Kate has, let's work through the information given step by step.

We know that Kate has 78 foreign stamps. Let's represent the number of Philippine stamps she has with the variable "P."

According to the information given, Kate has 15 less than twice as many Philippine stamps. We can express this statement as an equation:

78 = 2P - 15

Let's solve this equation to find the value of P, which represents the number of Philippine stamps.

First, let's isolate the variable P by bringing the constant term (-15) to the other side of the equation:

78 + 15 = 2P

Adding 78 and 15 gives us:

93 = 2P

Now, let's isolate P by dividing both sides of the equation by 2:

93/2 = P

The division gives us:

P = 46.5

Since the number of stamps cannot be a fraction, we know that Kate cannot have 46.5 Philippine stamps. Therefore, there might be an error in the given information or in the question itself.

Please double-check the information provided to find a whole number solution.