Question

найдите корень уравнения: 375: (b -125)=25

Answer 1

$375 div (b - 125) = 25\ frac{375}{b - 125} = 25 \ 375 = 25(b - 125) \ 15 = b - 125 \ - b = - 125 - 15 \ - b = - 140 \ b = 140 \ 375 div (140 - 125) = 25 \ 25 = 25$