Question

The difference of 9 times a number and 2 is 67.
Which equation below can be used to find the unknown number?

Answer 1

the total is 67 so you would write that out
67=
Next you can write out 9 times a number. you can let that unknown number be n(you can use any variable you like). So now you would have
67=9n
You still have to subtract 2 from the 9n so plug that in
67=9n-2
Your answer would be 67=9n-2