140k views
3 votes
Multiply each equation by a number that produces opposite

coefficients for x or y.
4x + 5y = 7
3x - 2y = -12
X-1
X
- 4x - 5y = -7

User RamAlx
by
7.8k points

1 Answer

4 votes

Final answer:

To produce opposite coefficients for x or y, multiply the first equation by -1 and the second equation by 4.


Step-by-step explanation:

To produce opposite coefficients for x or y, we can multiply the first equation by -1. This gives us: -4x - 5y = -7. Multiplying the second equation by -1 would give us the same equation as the first one. However, the goal is to produce opposite coefficients, so we multiply the second equation by 4. This gives us: -12x + 8y = 48.


Learn more about Multiplying equations by a number to produce opposite coefficients

User Michael Mankus
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.