Question

if 3x -y=27 and 3x+y=243, then find the value of x?

Answer 1

Ans: By elimination method,

y= 108
x=45.

Hope it helps...!!

Answer 2

Heya.....

Here is your answer....

3 x - y = 27                                        1.

3 x + y = 243                                     2.

Subtract 1 from 2,

after subtracting u'll get

y = 108

now put, the value of y in equation 1,

and then u'll get the answer of x which is

x = 45.

Thanks...!!!

XD

Sorry baby 'wink'