# Write an expression for three less than five times a number x

Let's call the number of marbles Bob has right now b. Variable: an unknown or changing number. Since 1 times anything is just that anything, we usually don't write 1 as a coefficient, but it's always there.

## 5 more than 3 times a number q

The same is true for two variables next to each other: it means they're being multiplied. Similarly, "subtracting p from q" means q - p. Bob has 47 marbles less than Jason. Let me start with a simple example of an English sentence that uses "less than": What is 2 less than 6? I'll give you some examples as I go through them, then some more afterward. Constant: a number that doesn't change. Each operation has its own cue words, and I've listed them here, with an example for each: Addition Kelley's Cautions Since subtraction is not commutative, be careful to get the order of the numbers right.

For example, the notation used by Descartes La Geometrie, and Wallis was very close to modern notation. Math Home Search Dr. The papyrus is a scroll 33 cm wide and about 5.

Don't be overwhelmed by how many there are - they are all pretty straightforward. We like terms, and we especially like like terms. We could have picked any letters we wanted, I just chose those at random. Word problems can be difficult to translate into math equations.

There are examples of the ancient Egyptians working with algebra. We now have: 1 Three times w is six less than three-tenths of x. Let's call the number of marbles Jason has right now j.

Well, 5 goes into 15 three times.

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