Evaluate: 7a - 3b + 4ab + 9b - 6ab - 3a
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4a + 6b - 2ab
Step-by-step explanation:
Combine the like terms and then simplify 7a – 3b + 4ab + 9b – 6ab – 3a
= 7a – 3a – 3b + 9b + 4ab – 6ab → arrange the like terms
= (7 - 3)a + (-3 + 9)b + (4 - 6)ab → combine like terms
= (4)a + (6)b + (-2)ab → simplify
= 4a + 6b - 2ab
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