So, for clarity's sake, let's use actual variables, rather than numbers. So the drawing should look something like the following?

Code:

lines:
6x+18 /
G -->>-------/----
10y+2 /
/
3x+9y /
H -------/--->>---
/

The lines G and H

*are* parallel (indicated by the ">>" notation), the slanty line

*is* a transversal, "6x + 18" and "10y + 2" do

*not* form a

fraction, and you are needing to use angle rules to create equations that you can solve for the values of "x" and "y"...?

Assuming so, where are you stuck? You used the straight-line angle sum rule to create an

equation from the top two expressions. You used some other rule to create a second equation using the first and third expressions, you simplified to get a system of two equations in two unknowns, applied whatever method they've given you for solving systems of linear equations, and... then what?

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