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Math Help - having trouble with this particulat problem

  1. #1
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    having trouble with this particulat problem

    hi guys i have a problem which i have been hitting myself across the head as to why i cannot figure out if it is a positive or negative answer :

    10-3b+3= -1 + (b+2) problem

    step 1 : 13-3b= b+1
    step 2 : 4b=-12 shouldnt the answer be -4?? my book says 4 what am i doing wrong in this problem
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  2. #2
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    Re: having trouble with this particulat problem

    correction book says answer is 3 i still get a negative
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  3. #3
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    Re: having trouble with this particulat problem

    Quote Originally Posted by tonyggggg View Post
    hi guys i have a problem which i have been hitting myself across the head as to why i cannot figure out if it is a positive or negative answer :

    10-3b+3= -1 + (b+2) problem

    step 1 : 13-3b= b+1
    step 2 : 4b=-12 shouldnt the answer be -4?? my book says 4 what am i doing wrong in this problem
    1. The result of step 1 is correct.

    2.

    13-3b= b+1 ........ add 3b

    13=4b+1 ........ subtract 1

    12=4b ........ divide both sides by 4

    \boxed{3 = b}
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