Two children weighing 42 pounds and 54 pounds are on a teeter totter. The 54 pound kid is sitting one…

Two children weighing 42 pounds and 54 pounds are on a teeter totter. The 54 pound kid is sitting one foot closer to the center than the 42 pound child. To balance the teeter totter, the child mus sit x feet from the center. Write an equation to find how many feet the 42 pound child must be from the center of the teeter totter so it is balanced. Solve for x.