Respuesta :

The second one. She did not correctly distribute 3 to (x-10) it’s supposed to be 3x-30 not 3x+30
ThanThanatosHadez

Answer:

The other person is correct. She didn't correctly distribute 3 to -10. The result would have been 3x - 30 instead of 3x + 30. If you multiply a positive number by a negative number, the answer will be negative. :)

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