Question

समीकरण को हल कीजिए 2x+2y=5 ,2x-2y=8

Answer 1

2x+2y =5
2x-2y= 8
adding both
4x=13
x= 13/4
putting in equation 1' x = 13/4
we get y = -3/4

Answer 2

Answer:

x= 13/4 and y= -3/4

Step-by-step explanation:

                      2x+2y=5                        ---------------(1)

(ADDITION)   2x-2y=8                         ---------------(2)

                    ----------------

                  ⇒     4x=13

                  ⇒    x=13/4                         --------------(3)

using (3) in (1), we get :-

⇒2x+2y=5

⇒2.13/4+2y=5

⇒13+4y=10

⇒4y=10-13

⇒y=-3/4

Hence x= 13/4 and,

           y= -3/4

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