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solve the equation through substitution

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Not sure how to do the below:

Solve:
2x=3y=-2
4x+6y=-4.

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Solution Summary

This solution is comprised of a detailed explanation to solve the equation.

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I wonder if it is 2x=3y=-2
or 2x+3y=-2

Now, assume the system is
2x+3y=-2 ...

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