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OpenStudy (anonymous):
Which correctly gives the expression using addition? –18.6 – 31.5 A. –18.6 + 31.5 B. 18.6 + 31.5 C. 18.6 + (–31.5) D. –18.6 + (–31.5)
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OpenStudy (anonymous):
-x = +(-x)
OpenStudy (anonymous):
A,B,C or D
OpenStudy (gorv):
D
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