I think we have an error in our pre-algebra book. How would you simplify this equation? 12b + -8b + + b. The answer in the book is 41/2b
12b+ -8b + + b How would you simplify this problem? The answer in the back of uour book says: 41/2b I wouls simplify it as:5b What is the correct answer?
2 Answers By Expert Tutors
rewite the expression as follows:
(12b) + (-8b) + (+b)
this makes each term in the expression more obvious.
now, factor the b out of each term as follows:
b(12-8+1) = b(5) = 5b
I'm thinking 5b as well, I am a little thrown off by the two back to back + signs though. If there are no fractions in the original problem you shouldn't have a fraction in your answer.
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