Mathematics
Mathematics, 14.12.2020 20:30, johns2380

In the system below, use equation (1) with equation (2) to eliminate x. Then use equation (1) with equation (3) to eliminate x. x-y-2z=4 (1)

-x+3y-z=8 (2)

-2x-y-4z=-1 (3)

What is the new 2 × 2 system?

2y – 3z = 12
–3y – 8z = 7

2y – 3z = 12
–3y + 8z = 7

2y – 3z = 12
–2y – 6z = 3

answer
Answers: 2

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In the system below, use equation (1) with equation (2) to eliminate x. Then use equation (1) with e...

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