# Math

She added 4, multiplied the sum by -5, and subtracted 12. She then doubled the result and got -34. What number did Christa started with?

1. 👍
2. 👎
3. 👁
1. work backwards.
first we start with -34.
from the second statement, it was said that she doubled it, but since we're working backwards, we divide -34 by 2:
-34 / 2 = -17
then subtracted by 12,, thus we add 12 by -17 :
-17 + 12 = -5
multiplied by -5,, thus we divide by -5:
-5 / -5 = 1
finally, she added 4,, thus we subtract by 4:
1 - 4 = -3

thus the number is -3

hope this helps~ :)

1. 👍
2. 👎
2. Multiplyed by 4 then 7 added after subtracting 3 the result is 8 what is the number

1. 👍
2. 👎

## Similar Questions

1. ### math

find each sum or difference 1. -1/2 + 1/3 1. -1/6 2. -1/3 3. 2/3 4. 1/6 I got 2/3 because I added the 2 numerators and got 2 then I kept the LCM as the denominator so I got 2/3. 2. -3 1/5 + -6 1/2 1. -3 2/7 2. -3 7/10 3. -9 2/7 4.

2. ### math

what number gives the same result when multiplied by 6 as it does when 6 is added to it?

3. ### Ratio

Three numbers are in the ratio of 3:5:7. If the largest number is multiplied by 3, the result is 26 more than the sum of the first and second numbers. Find the numbers.

4. ### statistics

A particular country has 55 total states. If the areas of 30 states are added and the sum is divided by 30, the result is 196,582 square kilometers. Determine whether this result is a statistic or a parameter and why.

1. ### achimota secondary school

when a certain number is added to 11 and the result is multiplied by 3, the final result is 45. Find the number.

2. ### math

the sum of two irrational numbers multiplied by the larger one is 70 and their difference is multiplied by the smaller one is 12

3. ### algebra

A number n is multiplied by 5/8. The product is subtracted by 2/3. The result 7/12, what is n.

4. ### mathematics

8 is added to a certain number and the sum is multiplied by 3 the result is 57.find the number

1. ### geometry

When the number w is multiplied by 4, the result is the same as when 4 is added to w. What is the value of 3w

2. ### Science

Based on the following information: A series of chemicals were added to some AgNO3(aq). NaCl(aq) was added first to the silver nitrate solution with the end result shown below in test tube 1, NH3(aq) was then added with the end

3. ### Pre college math

If 8 is added to twice a number and the sum is multiplied by to the result is the same as if the number is multiplied by -10 and two is added to the product what is the number

4. ### mathematics

The number 55 was multiplied by a 55-digit number containing only ones. What is the sum of the digits of the result?