5x+6y=14 3x-2y=-14 eliminate
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5x+6y=14× by 3
3x-2y=-14 × by 5
15x+18y=42.....(1)....
15x-10y=-70.....(2).....
- + +
28y=112
y=112/28
y=4
put y=4 in equation (1)
15x+18×4=42
15x+72=42
15x=42-72
15x=-30
x=-30/15
x=-2
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