Question: Write an equivalent expression for how many more stamps kid needs to collect to reach goal of 1000 stamps. See below for what we know.

Question

We know: He has 6 books of stamps that are filled and one that is partially filled with 62 stamps.

Answer 1

s represents the number of stamps in each book

goal = 1000 - 6s - 64

Answer 2

We stamp kid has 6 full books, though we do not know how many stamps per book there are, so let's have

b = stamp books.

We know that there is another bok that has 62 stamps, so that itself remains 62.

We have an unknown number of stamps needed to complete the collection, so let this stand as

s = stamps still needed.

All of these factors equal 1000. That gives us the following:

6b + 62 + s = 1000

We can do a few things from here. We can tidy up the order like so:

6b + s + 62 = 1000

We now have options from here. We can leave it as is, or modify the equation in a few different ways. We can have it written in standard form (variables on one side, the constant on the other) by subtracting 62 from both sides:

6b + s = 936

We can also form a linear equation by isolating a variable (I suggest s in this case as that would be the needed output; subtract 6b from both sides):

s = -6b + 1000

I hope these steps help you see how to interpret the given information into various equations.