Answer:
I think there must be g(x) instead of 8(x) in the question. You can look the solution but i have corrected it and then solved it.
Because the reciprical is the opposite, it is true. I hope this helps!
Subtract 6 on both sides


Multiply -2 on both sides to get "x" by itself

x = -8
1. {2x−3y=9
{3x+5y=4
2. {(2x−3y=9)×5
{(3x+5y=4)x3
3. {10x-15y=45
{9x+15y=12
4. (10x-15y=45) + (9x+15y=12)= (19x=57)
5. (19x=57)÷19
6. x=3
7. 2(3)-3y=9
8. 6-3y=9
9. -3y=9-6
10. (-3y=3)÷(-3)
11. y=-1
Answer: x=3 and y=-1
Wouldn't it just be the same as angle B?