Q. 4 J4.2( 10 Votes )
Let us solve the
Let us take as and
Then above equations can be written as
14a + 3b = 5 (i)
21a - b = 2 (ii)
In this problem, we will eliminate ‘b’ from both the equations.
Multiplying equation (ii) with 3, we have
Putting the value of a in equation(i) gives b = 1
Now Since and It will form again a system of linear equations in x and y.
Rearranging the above equation
x + y = 7 (iii)
x – y = 1 (iv)
⇒ x = 4, putting the value of x in equation(iii) gives y = 3.
Hence the solution of the linear equation is x = and y = 3.
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