Question

substitute x+y=14 ,x-y=4​

Answer 1

Answer:

$x = 4 + y...3 \\ 4 + y + y = 14 \\ 4 + 2y = 14 \\ 2y = 14 - 4 \\ 2y = 10 \\ y = 5 \\ x = 4 + 5 = 9$

Answer 2

Answer:

x = 9

y = 5

hope this helps......