-6b =15
-6b/-6 = 15/-6
b = -2.5
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12a + 6b + 9a + 14b =(12a + 9a) + (6b + 14b) =21a + 20b
5b - 3 - 2b = 6b - 3 3b - 3 = 6b - 3 3b - 6b = 3 - 3 b = 0
27
1.5
The answer to 6b plus 7 times 5-4b plus 1 equals 38. This is taught in math.