3 years ago

4. Explain and correct the error made by a student who simplified this expression.

1 answer:

3 0

Answer:

I notice that the first equation has a 7x, term and the second equation has a -7x term. These terms will cancel if we add the equations together—that is, we'll eliminate the the x terms:

Step-by-step explanation:

2y+7x= -5 + 5y-7x=12

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