Q2 of 61 Page 4

Solve the following simultaneous equation.

49x – 57y = 172; 57x – 49y = 252



Adding both the Equations



Dividing both sides by 106


…(III)


Subtract equation (I) and (II)



Divide both sides by (–8)


…(IV)


Equating Eq. (III) and (IV)





Substituting x=7 in Eq. IV





∴ solution is (x, y) = (7,3)


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