Question

does anyone knows how to do this. if it is send it soon

Answer 1

Hello,

The two equations are

$2y = x + 12 \\ - x + 2y = 12.....(1) \times 2 \\ - 2x + 4y = 24\\ \\ 3y = 11 - 2x \\ 2x + 3y = 11.......(2)$
Now,

Adding the two equations we get

$- 2x + 4y = 24 \\ \: \: \: \: 2x + 3y = 11 \\ = = = = = = = = = = = \\ 7y = 35 \\ y = \frac{35}{7} = 5$

So,
Value of y is equal to 5

Putting in equation (2) to obtain x

$2x + 3y = 11 \\ 2x = 11 - 3y \\ 2 x = 11 - 3 \times 5 = 11 - 15 \\ 2x = ( - 4) \\ \\ x = \frac{( - 4)}{2} = ( - 2)$




Hope this will be helping you.....