2 + ?6 = 4  4  ?11 = 7 
?9 + 2 = 7  ?6  1 = 7 
1  ?3 = 4  6  ?11 = 5 
3 + ? + ? = ? + ? + ?3 + 3 = 3 + 3 + 3 + 6 
What do the question marks represent?
Topics: Starter  Algebra  Negative Numbers
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6  11 
9  6 
3  11 
3 (assuming all the question marks represent the same number) 
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