In the circle patterns to the right each number in a large circle is the sum of the numbers in the two adjacent small circles The pattern on the left is complete but the pattern on the right needs to be completed Do so by letting x denote the value in one of the small circles Now obtain expressions and equations that let you solve for x and determine the values in all three small circles Suppose that x denotes the value in the lower small circle In terms of x what is the value in the upper left small circle Type an expression using x as the variable