Question

Two is subtracted from a number, and then the difference is multiplied by 5. The result is 30. Find the number

Answer 1

The number you would get is 8

how you get this answer is as followes 
x is going to be your unknown number 
you have to subtract 2 right? so you do:
x-2
then it says the difference is multiplied by 5 so then you multiply it by 5
5(x-2)
then you just solve for x 
your end result is 30 so you put that on the other side of the equation to solve for x
5(x-2)=30
now to solve for x you have to distribute the 5 which gets rid of the parenthesis 
5x-10=30
now move the 10 over by adding 
step one 5x=30+10 step two 5x= 40 
now you divide by 5 to get rid of the 5 
 step 1) 5x/5=40/5 step 2) x=8
the answer therefore is 8

Answer 2

(x-2)5=30 (that's the equation) (i made the number x)

x-2=6
x=8