Question

please solve it by substitution method...

Answer 1

x+y=14---------eq(i)
x-y=4-----------eq(ii)

x-y=4
x=y+4

Putting value of x=y+4 in eq(i)
x+y=14
y+4+y=14
2y=14-4
2y=10
y=5

x=y+4
x=5+4
x=9

y=5 and x=9

hope this helps you

Answer 2

$x + y = 14 - - - 1 \\ x - y = 4 - - - - - - 2 \\ from \: first \: equation \\ y = 14 - x - - - - 3 \\ put \: y \: in \: 2 \: eq \\ x - 14 + x = 4 \\ 2x = 18 \\ x = 9 \\ putting \: in \: first \: eq \\ 9 + y = 14 \\ y = 5$