R = -0.0075t+3.85. Solve for t. Here's my working. R = -0.0075t+3.85 R-3.85 = -0.0075t -t = R-3.85/-0.0075 t = R-3.85/0.0075 I thought this was correct but in the answer book on the very last step, I am wrong: t = 3.85-R/0.0075 Why is this?
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Originally Posted by JanoD R = -0.0075t+3.85. Solve for t. Here's my working. R = -0.0075t+3.85 R-3.85 = -0.0075t -t = R-3.85/-0.0075 t = R-3.85/0.0075 I thought this was correct but in the answer book on the very last step, I am wrong: t = 3.85-R/0.0075 Why is this? Dividing by:
Originally Posted by JanoD R = -0.0075t+3.85. Solve for t. Here's my working. R = -0.0075t+3.85 R-3.85 = -0.0075t -t = R-3.85/-0.0075 Here is your error. You divided both sides by -0.0075 and , not -t. t = R-3.85/0.0075 I thought this was correct but in the answer book on the very last step, I am wrong: t = 3.85-R/0.0075 Why is this?
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