4 + ?8 = 4  2  ?7 = 5 
?9 + 3 = 6  ?4  1 = 5 
1  ?1 = 2  5  ?12 = 7 
3 + ? + ? = ? + ? + ?4 + 4 = 4 + 4 + 4 + 7 
What do the question marks represent?
Topics: Starter  Algebra  Negative Numbers
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8  7 
9  4 
1  12 
4 (assuming all the question marks represent the same number) 
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