Question

-3/7x+5/6x-8/21x=-1/49 решите плз с решением,очень прошууу

Answer 1

-3/7x + 5/6x - 8/21x = -1/49

-18/42x + 35/42x - 16/42x = -1/49

1/42x = -1/49

x = -1/49 * 42

x = -6/7

Answer 2

$- \frac{3}{7} x + \frac{5}{6} x - \frac{8}{21} x = - \frac{1}{49} \\ \\ - 126x + 245x - 112x = -6 \\ ( - 126 + 245 - 112)x = 7x \\ 7x = -6 \div 7 \\ x = -\frac{6}{7}$