Question

Solve the following pair of linear equations by any suitable method : 2 x + y = 5, 2x - 3y = 5.​

Answer 1

Answer:

If 2 x + y = 5, 2x - 3y = 5.​ then coordinates are (2.5,0)

Step-by-step explanation:

Given equations :

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

2x - 3y = 5 --------- (2)

If 2x + y = 5

then y = 5 - 2x put in (2), we get

2x - 3(5-2x) = 5

2x - 3(5) - 3(-2x) = 5

2x - 15 + 6x = 5

8x = 5 + 15

8x = 20

x = 20/8 = 2.5

Put x = 2.5 in y = 5 - 2x

y = 5 - 2(2.5)

y = 5 - 5

y = 0

So, coordinates are (2.5,0)