answersLogoWhite

0

7x + y + z = 6

7x + y + 4z = 9

y + x = 6

Take the first two statements and subtract them.

7x + y + z = 6

7x + y + 4z = 9

_____________

0 + 0 - 3z = -3

Therefore: z = 1

Then you are left with:

7x + y + 1 = 6

7x + y + 4 = 9

which is impossible, so this is an impossible equation.

User Avatar

Wiki User

13y ago

What else can I help you with?