Question

12. Solve the pair of equations - + 3y = 14,- - 4y = 23

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Answer 1

Answer:

Equation (1)×3 :

x

12

+9y=42

Equation (2)×4 :

x

12

−16y=92

Subtract two equations ;

⇒25y=−50

⇒y=−2

Substituting 'y' in equation (1),we get ;

⇒x=

5

1