19-09-2017
Mathematics

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What should be the first step in adding these equations to eliminate y?

What should be the first step in adding these equations to eliminate y class=

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wizard123 wizard123

19-09-2017

Multiply top equation by 3.

3* (-2) = -6

(-6) + 6 = 0

The goal is for the 'y' coefficients to add to 0.

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