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Mathematics 15 Online
chakan:

Rodrigo is looking at the system below. 2x + 3y = 9 x - 8y = 11 To solve, he first multiplied the second equation by two and then subtracted the equations. Is Rodrigo correct? Justify your answer. If incorrect, describe the error.

Vocaloid:

if we multiply equation2 by 2 we get 2x - 16y = 22 now look at the other equation 2x + 3y = 9 can you subtract and eliminate any variables?

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