Question

Write two solution of the equation 2x + y = 9

Answer 1

Answer:

You should first substitute the value of X and then Y :

First we substitute X :

2x = 9 - y

x = 9 - y / 2

Now put y = 1

X = 9-1/2

X = 4

Then subsitute the value of Y :

y= 9-2x

put X = 1

y= 7

Thus the value of X= 4 and Y = 7