Multiplying One Equation to Solve Systems

Question 8 • (AG Q3) Math 8: 25-26 (JTurner)

Which system could Alyssa’s roommate Marni use to find x, the number of cups of fruit puree, and y, the number of cups of yogurt, Alyssa plans to buy?

Answer

x + y = 62x + 3y = 14

x + y = 63x + 2y = 14

6x + 2y = 142x + 3y = 6

x + y = 142x + 3y = 6

Using Substitution to Solve Systems

Using Addition to Solve Systems

Rewriting Equations to Use Substitution