6(a-b) + 8b = 6a - 6b +8b = 6a + 2b = 2 ( 3a + b)
14(x+a) - 9a = 14x + 14a - 9a = 14x + 5a
75 + 13b +89 + 20b = 75 + 89 + 13b + 20b = 164 + 33b
144c - 20c + 67a - 40a = 124c + 27a
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6(a-b) + 8b = 6a - 6b +8b = 6a + 2b = 2 ( 3a + b)
14(x+a) - 9a = 14x + 14a - 9a = 14x + 5a
75 + 13b +89 + 20b = 75 + 89 + 13b + 20b = 164 + 33b
144c - 20c + 67a - 40a = 124c + 27a