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4x+3y=2 /*(-3)
12x+4y= -4
-12-3y= -6
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y= -10
3x-10=-1
3x=-1+10
3x=9 /:3
x=3
x+4y=1
x-8y=1
x=1-4y
1-4y-8y=1
-12y=1-1
-12y=0 /:(-12)
y=0
x=1-4*0
x=1-0
x=1