Mathematics, 24.07.2019 14:00 gabbym39077
Erica solved the equation β5x β 25 = 78; her work is shown below. identify the error and where it was made. β5x β 25 = 78 step 1: β5x β 25 β 25 = 78 β 25 step 2: β5x = 53 step 3: -5x/-5 = 53/-5 step 4: x = - 53/5 a. step 1: she should have added 25 to each side. b. step 1: she should have divided both sides by β5. c. step 3: she should have divided both sides by β5. d. step 3: she should have multiplied both sides by β5.
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Erica solved the equation β5x β 25 = 78; her work is shown below. identify the error and where it w...
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