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OpenStudy (anonymous):
What is the solution to the equation? 1 - z/5 =9 A. z = 50 B. z = 44 C. z = –2 D. z = – 40
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OpenStudy (141823):
We can rewrite it as 1- 1/5z = 9 Subtract the 1 on both sides -1/5z = 8 Multiply both sides by -5, so we end up with z as a whole z = -40 So, D is the answer
OpenStudy (141823):
It wasn't necessary to rewrite it as 1/5z since they mean the same thing, I'm just used to seeing a coefficient
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