Please help me I will give you an Brainly

Step-by-step explanation:
ok so its basically like addition the top + the bottom.
3x + 3y = 12
6x + 11y = 14
9x + 15y = 26
now u wat to cancel out
9x + 15y = 26
9
15y = 26 y = 1.7
9x = 26 x = 2.8
i think this is right i hopw this helps
Answer:
y= -2
x= 6
there you go
I used elimination method!
Hope It Helps!!!!