Answer :

[tex]x=4y+6\\ x-3y=4\\\\ 4y+6-3y=4\\ y=-2\\\\ x=4\cdot(-2)+6\\ x=-8+6\\ x=-2\\\\ \boxed{(x,y)=(-2,-2)} [/tex]
Answer in addition..

[tex]\framebox[1.1\width]{Godspeed!} \par [/tex]
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