Question

If the value of x in the equation 2x – 8y = 12 is 2 then the corresponding value of y will be

Answer 1

substitute x as 2 in equation which gives
4-8y =12
-8y = 8
y= -1

Answer 2

$2 \times 2 - 8y = 2 \\ \\ 4 - 8y = 12 \\ \\ 12 - 4 = 8y$