AlgebraProblem 343 Sir SagarMay 5, 2014May 5, 20140 Problem 343 Show how to find the sum 6 + (-3) by using a. a counters model. b. a charged-field model. c. a number-line model. d. the rules for adding integers. Solution a. b. c. d. 6 + (-3) = 6 – 3 = 3