Math, asked by rabinmukherjee6040, 1 year ago

Solve the following pair of linear equations :-

2x+y=3, 5x-2y=4.​

Answers

Answered by Anonymous
8

Answer:

Given pair of linear equations are:

 =  > 2x + y = 3 -  -  - (i)

and

 =  > 5x - 2y = 4 -  -  - (ii)

Multiplying equation (I) by 2, we get...

 =  > 4x + 2y = 6 -  -  - (iii )

Now, adding equations ii and iii we get...

 =  > 5x + 4x - 2y + 2y = 4 + 6 \\  =  > 9x = 10 \\  =  > x =  \frac{10}{9} .

Putting x =10/9 in equation i, we get...

 =  > \frac{20}{9}  + y = 3 \\  =  > y = 3 -  \frac{20}{9}  \\  =  > y =  \frac{27 - 20}{9}  \\  =  >  y =  \frac{7}{9}

Hence, x=10/9 and y=7/9.

Answered by Anonymous
1

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