# Algebra

posted by KG

Jill asks each of her classmates to choose a number, then multiply the number by -3, add 2 to the product, multiply the result by -2, and then subtract 14. Finally, each student is asked to divide the result by 6 and record the answer. When Jill gets an answer from a classmate, she just adds three to it in her head and announces the number that classmate originally chose. How did Jill know to add 3 to each answer?

1. Damon

[(-3 x + 2 )(-2) -14 ]/6

[(6 x - 4 ) -14 ]/6

[6 x -18 ]/6

x - 3 write it down

add three and you get x back :)

2. Anonymous

X-3

## Similar Questions

1. ### Math

a. Write down a secret number, which can be any whole number Multiply by 5 Add 2 Multiply by 4 Add 2 Multiply by 5 Subtract 50 Drop the two zeros at the end. Do you recognize the result?
2. ### math

a teacher asked her students to think of a number, multiply by 5, and subtract the product from 20 , then she asked them to multiply the resulting difference by the number they first thougt of a) use function notation to express the …
3. ### Math

a teacher asked her students to think of a number, multiply by 5, and subtract the product from 20 , then she asked them to multiply the resulting difference by the number they first thougt of a) use function notation to express the …
4. ### math

a teacher asked her students to think of a number, multiply by 5, and subtract the product from 20 , then she asked them to multiply the resulting difference by the number they first thougt of a) use function notation to express the …
5. ### math for elementry school teacher

Mr. Mathemagician asks you to pick any whole number. Add 10. Multiply the result by 4. Add 200. Divide by 4. Subtract your original number. Mr. Mathemagician says, “You’re final result is 60!” Explain Mr. Mathemagician’s trick?
6. ### hheeelp

Mr. Mathemagician asks you to pick any whole number. Add 10. Multiply the result by 4. Add 200. Divide by 4. Subtract your original number. Mr. Mathemagician says, “You’re final result is 60!” Explain Mr. Mathemagician’s trick?
7. ### Math

If you multiply a number by 3 and then add 40, the result is the same as if you first add 17 and then multiply by 2. What is the result if you subtract 9 from the number and then multiply by 4?
8. ### Algebra

Pick a number. Double it. Multiply the result by 3. Add 24. Divide by 6. Subtract your original number. Is the result always the same?
9. ### Math

Repeat the following procedure for the four given numbers. Add 7 . Double the result. Subtract 4 . Divide by 2. Subtract the original selected number. The 1st number is 1 . The result is 5 . The 2nd number is 4 . The result is 5 . …
10. ### Math

I am thinking of a numbet. If you add 3, then subtract 6, then divide by 2, and finally multiply by 4, the result is -8. What is the number

More Similar Questions