Define a variable and write an equation for each of the following. Do NOT solve the equation:

The product of a number and 7 equals 49.

I know how to change it into a expression, but i dont get what "defining a variable" is.

This is my work:

7n=49
Let n=7

Am i suppose to do it like that!?

Question

Define a variable and write an equation for each of the following. Do NOT solve the equation:

The product of a number and 7 equals 49. 

I know how to change it into a expression, but i dont get what "defining a variable" is. 

This is my work:

7n=49
Let n=7

Am i suppose to do it like that!?

anonymous · Answer

Yes this is correct.

You "let the number be X or some variable" = defining the variable

anonymous · Answer

Oh..phew ^^ thanks!