Question

4 by X + Y - 3 by x minus Y is equal to 5 ,9 by X + Y - 5 by x minus y is equals to 4 please solve this please I request u find value of x and y please solve it today only my request please ☝​

Answer 1

Answer:

The given equations are:

and

Let  and , then the above equations become,

10a+2b=4        (1)            and 15a-5b=-2             (2)

Now, taking 2 common from the first equation, we get

5a+b=2            (3)

Now, multiplying equation (3) with 5 and then adding to the equation (2), we get

Substituting the value of a in equation (1), we get

Now,

and  

Therefore,the equation becomes x+y=5 and x-y=1, adding both the equations, we get

x=3 and then substituting the value of x in any of the above equation, we get y=2.

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Step-by-step explanation: