Answer:
The number is -136.
Step-by-step explanation:
Let the number be x, so we have the equation:
x + 2 = 7/8 x - 15
x - 7/8 x = -15 - 2
1/8 x = -17
x = -17 * 8 = -136.
Answer:

Step-by-step explanation:
we have

Group terms that contain the same variable, and move the constant to the opposite side of the equation


Complete the square . Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares
