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Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?

1) -15m = -4m

2) -7m - 8 = m - 4

3) -3m - 8 = 4 - m

4) m - 4 = -7m - 8

5) -8 - 7m = -4 + m

6) -8 - 3m = 4 - m

1 Answer

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-2m - 5m - 8 = 3 + (-7) + m

-7m - 8 = -4 + m

or

-7m - 8 = m - 4

or

-8 - 7m = -4 + m

Answer

2) -7m - 8 = m - 4

4) m - 4 = -7m - 8

5) -8 - 7m = -4 + m

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