Question

solve the following sets of simultaneous equations 2x-7y=7 ; 3x+Y=22​

Answer 1

Step-by-step explanation:

Thank you

This is the answer of your question

Answer 2

Answer:

=> The value x = 7, y = 1

Step-by-step explanation:

Given that:-

$2x-7y=7$      $...(i)$

$3x+y=22$      $...(ii)$

To find:- The value of x and y,

Now, multiply equation ( ii ) with 7 we get,

=> $21x+7y=154$     $...(iii)$

Add the equation ( i ) and ( iii ), we get

=> $23x=161$

Divide by $23$, on both sides we get

=> $x=7$

So, the value of x is 7.

Now, by putting the value of x as 7 in equation ( i ), we get

=> $2x-7y=7$

=> 2 ( 7 ) - 7y = 7

=> 7y = 14 - 7

=> 7y = 7

=> y = 1

So, the value of y is 1.