Explanation:
x = 1 y=2
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Answer:
x=1, y=2
x + 4y =9 .... multiply by 2
2x + 8y =18
(-) 2x-4y=-6 .......x's cancel out
......................................
12y=24
y = 2
Ans: if y=2
x= (18-8(2))/2
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