What is the difference if the sum of 3a + b and 1 – 4b is
subtracted from 7a – 3b?
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Answer: 4a -1
Step-by-step explanation: .
Sum of 3a + b and 1 – 4b = 3a + b + 1 - 4b = 3a - 3b + 1
Difference = 7a – 3b - (3a - 3b + 1)
= 7a - 3b - 3a + 3b - 1
= 4a -1
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