Simplify this by dividing both sides by 3. The result is |x + 12| = 2. There are actually two correct results. If it happens that x + 12 is already positive, then x + 12 = 2 and x must be -10. If it happens that x + 12 is negative, then the equation becomes -(x + 12) = 2, or -x - 12 = 2, or x = -14.
As we know that volume is three dimensional so we will multiply width, length and depth Now as we have to find the depth of the pool so Volume= length*width*depth depth=Volume/(length*width) d=2500/(40*22) d= 2500/880 depth=2.841ft
