Three less than triple a number is the same as the number plus 57. Write an equation to represent the situation and what is the number?

Question

I need this done by tonight someone please help. It is 8th grade math!

Answer 1

Let the unknown number be N

3N - 3 = N + 57

This is your equation. Let's solve this now

3N - N = 57 + 3

2N = 60

N = 60/2

N = 30

The number is 30

Answer 2

“Three less than” means -3.

”triple a number” means 3y. (Y is the variable)

“is the same as” means =.

”the number plus 57” means y + 57.

Now put it all together and solve for y.

3y-3=y+57

+3 +3

3y=y+60

-y -y

2y=60

/2 /2

y=30