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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
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7.4k 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
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