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Consider the system of linear equations. To use the linear combination method and addition to eliminate the x-terms, by which number should the first equation be multiplied? –2 -1/2 1/2 2
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Consider the system of linear equations.

To use the linear combination method and addition to eliminate the x-terms, by which number should the first equation be multiplied?
–2
-1/2
1/2
2

Consider the system of linear equations. To use the linear combination method and-example-1
User Bonfix Ngetich
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3 votes
It should be multiplied by -2.
Then the first x term will be -10x, and the second will be 10x, so they can be added together to make 0x, and that eliminated x.
User Jbbae
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