Answer:
x = 17 :)
Explanation:
since the question says that m and n are parallel, you can use the alternate interior angles theorem. the theorem states that alternate interior angles are equal to each other, so you can make the expressions equal to each other.
9x+23 = 10x+6
subtract 9x from both sides.
23 = x+6
subtract 6 from both sides.
17 = x
the value of x is 17! hope this helped xoxo