Question 272065
9x+2y=2 multiply by -3 & add.
21x+6y=4
-27x-6y=-6
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-6x=-2
x=-2/-6
x=1/3 ans.
9*1/3+2y=2
3+2y=2
2y=2-3
2y=-1
y=-1/2 ans.
Proof:
21*1/3+6*-1/2=4
7-3=4
4=4