You can put this solution on YOUR website! Let x = "the number"
:
twice the reciprocal of a certain number when added to 3 is equal to the number with its sign is changed.
2() + 3 = -x
: + 3 = -x
multiply both sides by x
2 + 3x = -x^2
A quadratic equation
x^2 + 3x + 2 = 0
Factors to
(x+2)(x+1) = 0
two solutions
x = -2
x = -1
Check both solution in the original statement
