# MATH

posted by .

i am thinking of a number. if you multiply it by 7, then add 15, and finally subtract 3^2 you get 48. write and solve an equation that describes the number (x) that i am thinking of.

how do i find it?
what is x?

• MATH -

Let x be the number.

You multiply that number by 7

SO FAR WE HAVE: 7x

You add 15 to that number

SO FAR WE HAVE: 7x+15

You subtract 3^2 (which is 9) from that number

SO FAR WE HAVE: 7x+15-9

When you do all of that to the number, you get 48

THE FINAL EQUATION IS: 7x+15-9=48

TO SOLVE:
7x+6=48
7x=42
x=6

• MATH -

kk thank you

## Similar Questions

1. ### Word Problem- Algebra

1. Multiply a number by 4, then multiply this product by 5, then you get 80 Whats the way to solve it, the equation. 2. Add 4 to a number, then subtract 5 from the sum, and you get 43 Whats the equation to solving that if anyone can …
2. ### math

Kevin and Zach are playing a number guessing game. Kevin says, "I am thinking of a number. If you double it and then subtract one, the result is 7." a) Write an equation that Zach could solve to find Kevin's number. b) Explain the …
3. ### Algebra

How do I express this in algebraic form? And could you please explain how you came up with the expression?
4. ### Its math, cmon answer!!!

This is my HW problem; I'm thinking of a number. When I double my number, subtract five, and then add my original number, I get one. What's my number?
5. ### math

. I am thinking of a whole number. If I divide it by 13, then multiply the answer by 12, then subtract 20, and then add 89, I end up with 93. What was my original number?

Ned divided a given number by 3 and then added 2. If he should have multiplied the number by 3 and then subtracted 2, which of the following two steps can he do next to get the correct answer?
7. ### maths

i am thinking of a number i multiply it by 8 and subtract 163 i would get the same answer if i multiply by 3 and subtract 13
8. ### Math

I am thinking of a number When I subtract 15 and multiply the answer by 6, I get 48
9. ### Math

I am thinking of a number. If you multiply my number by 6 and then subtract 35, you will get my number. What is my number?
10. ### math

im thinking of a number. i add 12. i double it. I subtract 8. I halve the number. I get 12 . Whats my number?

More Similar Questions

Post a New Question