# SOLUTION: In What postive base b does the equation 4*12=103 for multiplaction of base b hold?

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 Click here to see ALL problems on Human-and-algebraic-language Question 30430: In What postive base b does the equation 4*12=103 for multiplaction of base b hold?Answer by Fermat(127)   (Show Source): You can put this solution on YOUR website!Let the base be b. the numbers in the expression can be re-written as, or, 4 = 4 12 = b + 2 103 = bē + 3 Therefore, 4*(b+2) = (bē+3) 4b + 8 = bē + 3 bē - 4b - 5 = 0 (b+1)(b-5) = 0 b = -1, b = 5 since the base is to be positivee, then Ans: b = 5 ==========