PLZZ HELP ASAP Giovanna used the calculations below to determine the height of a stack of 7 books that are each mc004-1.jpg inches thick. What was her error?
mc004-2.jpg
The fraction was not simplified in the last step.
Seven was not multiplied by mc004-3.jpg.
There should be a subtraction step, not an addition step.
Two should have been multiplied by mc004-4.jpg.
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A one-step equation is an algebraic equation you can solve in only one step. ... To solve one-step equations, we do the inverse (opposite) of whatever operation is being performed on the variable, so we get the variable by itself.
Step-by-step explanation:
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