Q. 145.0( 1 Vote )

If and then find the value of (x + y).

Answer :

We have the given pair of equations are:

…(i)


…(ii)


Now, multiplying (i) by 12 and (ii) by 4 we get:


3x + 4y = 5 …(iii)


2x + 4y = 4 …(iv)


Now, subtracting (iv) from (iii) we get:


x = 1


Now, putting the value of x in (iv) we get:


2 + 4y = 4


4y = 2





=


=


Hence, the value of (x + y) is


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