Question

14x+18y= -54
-4x-14y=42

Answer 1

multiply the first eqn. by 2 and 2nd by 7....eliminate x and get y....now put the value of y you got in any of the eqn. and get x...

Answer 2

is this method substitution?

Answer 3

That's elimination

Answer 4

I need the process in substitution.

Answer 5

Then consider equation (2)
-4x-14y=42 , make x as subject.
-4x-14y=42
-4x = 42 + 14y
x = (42 + 14y) / -4 -(3)
Sub (3) into the first equation. Can you do it from here?

Answer 6

find out y in terms of x from the first eqn. then put it in the second one......get x....put the value of x u gt in any of the eqn. and get y...

Answer 7

Hi Cllisto, you wrote the -4x-14y=42 twice, is that correct ?

Answer 8

lol, The first one is to tell you what to do...
''-4x-14y=42<- make x as subject. ''
Then the rest are the steps

Answer 9

lol ok