------- eq (i)

 ------- eq (ii)

Let , and 

Then  becomes: 2a – 3b = - 5 ------ eq (iii)

Also,  becomes: 4a + 6b = 14 ------- eq (iv)

4a – 6b = - 10 -------- Multiplying eq (iii) by 2 ----- eq (v)

8a = 4 ------- Adding eqs (v) & (iv)

a = , or  



 -------- Substituting ½ for a in eq (iii) 

1 – 3b = - 5 

– 3b = - 5 – 1 

– 3b = - 6

b = , or 2



Since , then 

 ------ Cross-multiplying



Since , then 

2y = 1 ------ Cross-multiplying





 

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