3x+7y=11and 7x-4y=9=? Find the ans with solution
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3x−7=7....(1)
x+4y=11....(2)
Multiply (1) by 4
12x−4y=28....(3)
x+4y=11....(2)
Add (3) and (2)
13x=39
x=3
a−y=7
y=2
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