Asked by amyiah
twice the difference of a number and 3 is -8. what is the number ?
Answers
Answered by
mathhelper
difference of a number and 3 is |x-3|
twice that difference is 2|x-3|
so 2|x-3| = -8
but by definition |x-3| must be ≥ 0, so the way it stands there is no solution
if you meant:
2(x-3) = -8
x-3 = -4
x = -1
twice that difference is 2|x-3|
so 2|x-3| = -8
but by definition |x-3| must be ≥ 0, so the way it stands there is no solution
if you meant:
2(x-3) = -8
x-3 = -4
x = -1