Simplify a − 2a + 3a − 4a + 5a − 6a + … + 99a − 100a

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Answers

Answered by oobleck
a(1-2 + 3-4 +... + 99-100)
a(-1 + -1 + ... + -1) ---- 50 times
-50a
Answered by what is connexus tho
thankyou :)
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