Question

Find the solution for the pair of linear equations : 2 x + y = 14 x – y = 4

Answer 1

Answer:

x = 9 and y = 5

Step-by-step explanation:

x + y = 14

x - y = 4

Adding the 2 equations,

x + y + x - y = 14 + 4

2x = 18

Thus, x = 9 and y = 5

Hope this helps! :)

Answer 2

Answer:

x=10

y= -6

Step-by-step explanation:

2x+y=14 ---(equation 1)

x-y=4 (multiply by 2)

2x+y=14

2x+2y=8

- - - ( change the same sign)

_______

0 -y =6

y= -6

put the value of y in equation 1

2x +(-6) =14

2x-6=14

2x =14+6

x=20/2

x=10