Chapter 2 - Solving Equations - 2-4 Solving Equations with Variables on Both Sides - Practice and Problem-Solving Exercises - Page 107: 48

x=-3 and x=-5

A spreadsheet shows values for x and the result when they are substituted in the expressions. a) No, the spreadsheet doesn't show any values for x where the two expressions are equal. b) Between the values of -5 and -3 for x is where the results change from negative to positive. c) The value of 7(x + 2) is less than the value of 3(x-1) at x = -3 and x = -5.