Answer:
x = - 12
Step-by-step explanation:
Since line with identical signs are parallel and a transversal is making right angle with one of the lines.
So,
[tex](x + 102 ) \degree= 90 \degree \\ \\ x + 102= 90 \\ \\x = 90 - 102 \\ \\ x = - 12[/tex]
