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OpenStudy (anonymous):
Simplify -31+(-20)-(-10)-19=
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OpenStudy (anonymous):
= -31 - 20 + 10 - 19 = -60 The combination of a positive and a negative, or vice versa, makes a negative. The combination of two negatives, however, make a positive. When you are doing equations like these you just have to remember that.
OpenStudy (anonymous):
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