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Elemenation method 1) x+y = 7, 5x+ 2y = 7 |
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Answer» x+y=7...... (1)5x+2y=7....... (2)-------------------------Equation (1)×5 Equation (2)×1 {By elimination method}We\'ll get5x+5y=35......... (3)5x+2y=7...........(4)---------------------------------[On subtracting equation 3 and 4] We\'ll get,3y=28y=28/3On putting the value of y in equation (1)x+y=7 x+(28/3)=7 x=7-28/3 x=(-7/3) Please answer me |
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