I really need help with number 8 find the value of x that makes abcd a parallelogram.

Answer
x = 11
Explanation
Given:
What to find:
The value of x in the given parallelogram
Step-by-Step solution:
The opposite angles of a parallelogram are equal
Therefore to find the value of x
[tex]\begin{gathered} \text{ 8}x\text{ - 23 = 5}x\text{ }+\text{ 10} \\ \\ Rearrange\text{ }the\text{ }likes\text{ }term \\ \\ 8x\text{ - 5}x\text{ = 10 + 23} \\ \\ 3x\text{ = 33} \\ \\ Divide\text{ }through\text{ }by\text{ }3\text{ } \\ \\ \frac{3x}{3}\text{ = }\frac{33}{3} \\ \\ x\text{ = 11} \\ \end{gathered}[/tex]