8e - 3f - e - 3f = (8e - e) + (-3f -3f) = 7e + (-6f) = 7e - 6f
8 e − 3 f − e − 3 f = 7 e − 6 f
The expression 8 e − 3 f − e − 3 f simplifies to 7 e − 6 f . This is done by combining like terms for both e and f .
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