Question

Can someone help? I need explaination on how you got the answer please!
Find the value of x which E//m
picture posted below

Answer 1

well it looks like l and m are parallel



so there is a vertical angle that is equal to the one shown (105)

then you have a pair of co-interior angles in parallel lines which sum to 180



105 + 3x - 18 = 180

just solve for x

Answer 2

how...? haha sorry.

Answer 3

if you simplify the equation for the co-interior angles

3x + 87 = 180

maybe that helps

just solve the equation to find x

Answer 4

Oh ok Thank you for your help!