Question

Eliminate the “z” variable in the first two equations by finding opposite coefficients and adding. What is the resulting equation?

4x – y + z = 6
3x + 2y – z = 0
4x – y – 3z = 2

Answer 1

they already HAVE opposite coeffs

Answer 2

so just add them together :/

Answer 3

x + y = 6
7x + y = 6
7x – y = 6
x – y = 6
these are the answers ...

Answer 4

those are the options, not the answers; only one of the options is the answer .....

Answer 5

add the first 2 eqs and what do we get?

Answer 6

7x+y=6

Answer 7

4x – y + z = 6
3x + 2y – z = 0
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7x +1y -0z = 6

Answer 8

I agree :)