Question

A works in x+6 days b works alone in x+1 day and c alone works in 2x days find total work done

Answer 1

According your question

$2x = - 6 - 1\\ 2x = - 7 \\ x = \frac{ - 7}{2}$
its A work is -7/2+6= -5/2

and B=-7/2+1=-5/2



C alone= 2×-7/2 = -7