Respuesta :

r3t40

[tex]-6a+a+28a=-6a+29a=23a[/tex]

Hope this helps.

These are all like terms, meaning that they involve the same literal expression (in this case, "a").

So, we can factor a out of all the terms, and we have

[tex]-6a+a+28a=a(-6+1+28) = 23a[/tex]

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