3x – 7y = 6 ------- eq (i)

2x – 3y  = 1 ------ eq (ii)

In order to avoid fractions, do the following:

1)  Multiply the 1st equation by 2, and solve for 6x to get: 6x - 14y = 12_____6x = 12 + 14y ------ eq (iii)

2)  Multiply the 2nd equation by 3 to get: 6x - 9y = 3 ------ eq (iv)

3)  Substitute 12 + 14y for 6x in eq (iv) to get: 12 + 14y - 9y = 3

5y = - 9



3x - 7(- 1.8) = 6 ------ Substituting - 1.8 for y in eq (i)

3x + 12.6 = 6

3x = - 6.6

 

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