Mark M. answered 08/19/16
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Mathematics Teacher - NCLB Highly Qualified
3x + 7 - (x + 4)
3x + 7 - x - 4 distribute -1
2x + 3 combine like terms
Leon A.
asked 08/19/16
Mark M. answered 08/19/16
Mathematics Teacher - NCLB Highly Qualified
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