Question

я слишком тупая для подобного хелп;-;​

Answer 1

Ответ:

-9

Пошаговое объяснение:

5. 5/12х - 5. 1/4х =

-3. 5/7 + 2. 3/14

5. 5/12х - 5. 3/12х =

-3. 10/14 + 2. 3/14

2/12х = -1. 7/14

1/6х = -1. 1/2

1/6х = -3/2

х = -3/2 : 1/6

х = -3/2 * 6/1

х = -18/2

х = -9

Answer 2

$5\frac{5}{12}x-2\frac{3}{14} =5\frac{1}{4} x-3\frac{5}{7} \\\\5\frac{5}{12}x -5\frac{1}{4} x=-3\frac{5}{7} +2\frac{3}{14}\\\\\frac{5-3}{12}x = - 1\frac{5*2-3}{14} \\\\\frac{2}{12}x=-1\frac{7}{14} \\\\\frac{1}{6}x=-1\frac{1}{2} \\\\x=-1\frac{1}{2}:\frac{1}{6} = -(\frac{3}{2}: \frac{1}{6})=-(\frac{3}{2}*\frac{6}{1}) = -9$