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OpenStudy (anonymous):
The sum of negative eighteen and a number is eleven. What is the number? Which equation could be used to solve the problem? x - 18 = 11 18 - x = 11 -x + 18 = 11 x + 18 = 11
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OpenStudy (nubeer):
negative 18 = -18 sum = + a number = x so -18 +x = 11 as the sum of negative 18 and of the number is equal to 11
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