Question

Solve x and y of linear equation x+y=14 & x-y=4

Answer 1

x+y=4
x-y=4

2x =8
x=4

4+y =14
y= 10

Answer 2

x+y=14
x=14-y
put value of x in x- y =14
14-y- y=4
14-2y=4
-2y=4-14
-2y=-10
y=5

put y =5 in any equation
x+5=14
x=14-5 =9