class 9 icse mathematics
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x+2y =1.......... 1 eqn
3x - y =17.......... 2 eqn
Multiply eqn 2 by 2
x+2y =1
6x - 2y =34 add eqn
X=5
3x - y =17.......... 2 eqn
Multiply eqn 2 by 2
x+2y =1
6x - 2y =34 add eqn
X=5
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