Question:

When solving the following system by substitution, which expression canbe substituted continued --?

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into the 2nd equation 4y?

2x+y=5 and 3x-2y=-12

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  1. If you subtract 2x from each term in the first equation, you get y=5-2x.  So, you can substitute (5-2x) for y in the second equation.

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