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DixonD · Answer 1 · 2023-03-22T08:24:18+0000

We must simplify the following expression:

From the expression, we see that we have terms with variable a and terms with variable b. In order to simplify the expression, we add the terms with a together (which sums up 8a), and we do the same for the terms with b (which sums up 1b):

$\begin{gathered} 7a+2a-a+6b-5b \\ =(7a+2a-a)+(6b-5b) \\ =8a+b \end{gathered}$

The solution is: 8a+b

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