Question

4 + (-7) + (-5)=

10 + (-3) + (-8)=

85 + (-15) + (-20) + 12=

60 + (-50) + (-30) + 25=

17 + (-4) + 2 + 3 + (-10)=

19 + (-5) + 1 + 8 + (-13)=

-8a + (-15a)=

-9a + (-13a)=

Step 1

To simplify the given additions and subtractions:

Step 2

As a general principle, group the positive terms and negative terms separately and simplify

Step 3

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