1. 8x+3y=11; 9x+2y=11
2. 5x+1y=6; 3x+2y=5
3. 3x+2y=5; 5x+5y-1=11
4. x+5y=6; 3x+y=3
5. (5x+y=1)x3; (x-4y=4)y7
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Answer:
8x+ 3y = 11 -----eq no 1 ×2
9x +2y = 11 -----eq no 2 ×3
We get
16x+6y = 22
27x+6y =22
subtract two
11y = 0
y = 0
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