Can someone explain this to me please. I am adding 10b+-5b+b. When I add or multiply a single letter like "b", do I subtract or add? For the first part 10b+-5b=5b now I need to add b. So will it be 5b^2 or 4b. Please simplify for me. Thanks.

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Can someone explain this to me please. I am adding 10b+-5b+b. When I add or multiply a single letter like "b", do I subtract or add? For the first part 10b+-5b=5b now I need to add b. So will it be 5b^2 or 4b. Please simplify for me. Thanks.

Mathematics
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If your adding 10b+-5b+b (if I got that right) then your answer should be simple. You just add the coefficients in front of each of the b's. What I mean by that is your answer will be 10-5+1 = 6 , so your answer will be 10b+-5b+b= 6b
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Ok so basically when I see a letter by itself, I just add 1.

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Yes but only if it is the same letter as the other letter (such as in this case) and the letter cannot have a different exponent. For example b+b+5b+6b is all good. But b+ b^2 cannot happen
Understand, thank you for your help
No problem : )

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