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 Interactive Checkpoint
 Unknown:  A variable whose values are solutions of the equation that they are written in.

Answer the following questions about unknowns.

Enter each answer below and press TAB to check

Graded Response

What are the variables in the equation

r = -3w + 2 ?

a) and  

b) How many unknowns are in the equation

x = 3x2 - 5 ?

b)  
c) If 7 + q = 12, what number does the unknown represent? c)