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Simplify: 7a + 2a - a + 6b - 5b

User Jesus Bejarano
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1 Answer

18 votes
18 votes

We must simplify the following expression:


7a+2a-a+6b-5b

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

User Sumita
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