Question

I need help on how to do this, please. What is the value of x?

Answer 1

×=167
180-12=168
× and 13 are linear pair so together they equal 180

Answer 2

Since, the lines are parallel (which means their slopes are equal), they will cut the lines in a proportion. Hence,
$\frac{x}{24} \: = \: \frac{12}{36}$
$x \: = \: 24 \: \times \: \frac{1}{3}$
$x \: = \: 8$