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31-03-2017
Mathematics

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How do you do 1, 2 and 3?

1. y=9x + (-4x)

2. y= -2x - 1

3. y= 5/9x

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sarahcgammill sarahcgammill

31-03-2017

if something is plus a negative (like + (-4x)) then you subtract. If something is minus a negative (like - (-3)) you add.

1. y = 9x + (-4x)
y = 5x

not sure about the others, its been a fat minute since I was in 6th grade.

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