simplify -20 + 10- 7-(-6) + (-20)

Please explain what need to be done to simplify  -20 + 10 - 7 - (-6) + (-20)
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1 Answer

-20 + 10 - 7 -(-6) + (-20) = -20 + 10 - 7 + 6 -20 = -10 -7 +6 -20 = -17 + 6 -20 = -11-20 = -31
by Level 1 User (260 points)
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