Question

найдите корень уравнения 13/18 х+13=7/12 х+8​

Answer 1

Ответ:

решение смотри на фотографии

Answer 2

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$\displaystyle \bf \frac{13}{18}x+13=\frac{7}{12}x+8\\\\\\ \frac{13}{18}x-\frac{7}{12}x=8-13\\\\\\ \frac{13}{18}x-\frac{7}{12}x=-5\\\\\\x\left(\frac{13}{18}-\frac{7}{12}\right)=-5\\\\\\x\left(\frac{26-21}{36}\right)=-5\\\\\\\frac{5}{36} x=-5\\\\\\36\cdot \frac{5}{36}x=36\cdot \left(-5\right)\\\\\\5x=-180\\\\\\x=\frac{-180}{5} \\\\\\\boxed{x=-36}$