Explanation
we will apply the parallelogram laws to answer the given question
For the question
So applying the above
[tex]-9-6x=x-30[/tex]
Solving for x
[tex]\begin{gathered} -6x-x=-30+9 \\ -7x=-21 \\ \\ x=-\frac{21}{-7} \\ \\ x=3 \end{gathered}[/tex]
The value of x = 3
