Question

(12a-5b)-(a+6b)Combining like terms

Answer 1

Let's simplify the expression:

`(12a-5b)-(a+6b)`

to do this we first remove the parentheses; since the second one has a minus in front of it we change the sign of the tems inside it; then we have:

`(12a-5b)-(a+6b)=12a-5b-a-6b`

Now we need to add like terms, this means that we add the terms that have the same variable. In this case we need to add 12a and -a, and we need to add -5b and -6b. Then we have:

`\begin{gathered} (12a-5b)-(a+6b)=12a-5b-a-6b \\ =11a-11b \end{gathered}`

therefore the final result is:

`11a-11b`