Question

whoever will give the right ans of this question i will mark him/her as brainielist and give him/her 5 star . So the question is :- 3x + y = 10 ; x - y = 2 Solve using elimination method , this question is of 10th standard chp linear equation in one variable.

Answer 1

3x + y = 10 .....(1)

x - y = 2 .......(2)

adding equation (1) and (2) , we get

4x = 12

=> x = 12/4 = 3

put this value in equ (2) ,we get

3 - y = 2

=> y = 3 - 2

=> y = 1

hence , x = 3 and y = 1

hope it help you

Answer 2

Answer:

$3x + y = 10.....equation \: 1$

$x - y = 2.....equation \: 2$

$equation \: 1 + 2$

$= > 4x = 12 \\ = > x = 3$

$substitute \: x \: value \: in \: equation \: 2$

$3 - y = 2$

$y = 1$

$so \: value s\: of \: x,y \: are \: 3,1$