Three less than five times a certain number is twelve, what is the number?

Let x = the number

Three less than five times the number is 5x - 3

Eleven more than the number is x + 11

So the problem says

5x - 3 = x + 11

n=3

Step-by-step explanation:

(five times a certain number) 5*3=15

(three less) 15-3=12

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!