Question

2x - 7y = 7; 3x + y = 22

Answer 1

Answer:

Step-by-step explanation:

2x - 7y = 7 -----------------1

3x + y = 22 ----------------2

multiply whole eq. 2 by 7

21x + 7y = 154 ------------ 3

Add ep. 1. and 3.

2x - 7y = 7

21x + 7y = 154

23x = 161

x = 161÷23

x = 7

Substituiting x = 7 in ep. 1

2(7) - 7y = 7

- 7y = 7 - 14

- 7y = - 7 ( - and - cancel )

7y = 7

y = 7÷7

y = 1

the value of x any y is 7 and 1.

i have solve this question by simultaneous method

if you are satisfy with my answer then mark me as a brainlist.

if there is anything wrong then kindly rectify me

Answer 2

Answer:

=> The value of x = 7, and y = 1.

Step-by-step explanation:

Given that:-

$2x - 7y = 7$     $...(i)$

3x + y = 22

Multiply the above equation by 7,  

$=> 21x + 7y = 154$     $...(ii)$

On adding equations 1 and 2, we get

=> $23x = 161$  

=> $x = 7$

Now,  substituting the value of x in equation 1, we get

=> $2(7) - 7y = 7$

=> $14 - 7y = 7$

=> $7 = 7 y$

=> $y = 1$

So, the required solution is 1.