HS.A.16

Understand each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method. (MP.1, MP.3)

Example Problems
What is the result of adding these two equations?

What is the result of adding these two equations?


What is the result of adding these two equations?


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