How do you solve x - 2y =5x2y=5 and 2x -4y= 12x4y=1 using substitution?

1 Answer
Jun 28, 2016

No solutions. It is not possible for 2x -4y = 1for2x4y=1 and also at the same time, 2x - 4y = 102x4y=10

Explanation:

x - 2y =5x2y=5 ======> 1

so, x = 2y + 5x=2y+5

2x - 4y = 12x4y=1 ======> 2

substituting value of xx in 2, we get 2*(2y+5) - 4y =12(2y+5)4y=1

=> cancel(4y) + 10 - cancel(4y) = 1 => 10 = 1 which is not TRUE.

Hence, No Solutions for the given equations.