SOLUTION: if -8 is added to a number and the sum is doubled, the result is 15 less than the number. find the number.

SOLUTION: if -8 is added to a number and the sum is doubled, the result is 15 less than the number. find the number.

Algebra.Com

Question 367328: if -8 is added to a number and the sum is doubled, the result is 15 less than the number. find the number.
Answer by HasanSahin(52) (Show Source): You can put this solution on YOUR website!
Let's say the unknown number "x"
x + (-8) = x-8
double the sum and make equal it to the 15 minus of the number:
2*(x-8) = x-15
So: 2x-16 = x -15 >> x = 1.
RF.
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