Question

X−10y=12

10x+10y=10 Addition Elimination

Answer 1

x = 2 and y = -1

Explanation:

that is the solution above

Answer 2

x = 2

y == -1

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}`