Question

X−10y=12 10x+10y=10 Addition Elimination

Answer 1

Answer:

x = 2

y == -1

Step-by-step explanation:

Solving linear equations by elimination method:

     x - 10y = 12 ----------------(I)

   10x + 10y = 10 --------------(II)

We can find the value of 'x' by eliminating 'y'. To eliminate 'y', add equations (I) & (II)

           (I)             x - 10y = 12

          (II)         10x + 10y = 10   {Now add the equations}

                         11x          = 22

                                     x = 22 /11

                                  $\sf \boxed{\bf x = 2}$

Now, Plugin x = 2 in equation (1)

 10*2 + 10y = 10

   20  + 10y = 10

             10y = 10 - 20

             10y = -10

                 y = -10/10

                $\sf \boxed{\bf y = -1}$

Answer 2

Answer:

x = 2 and y = -1

Step-by-step explanation:

that is the solution above