Mathematics, 24.07.2019 16:00 arianawelsh123l
The work of a student trying to solve the equation 3(4x − 2) = 9 + 2x + 5 is shown below: step 1: 3(4x − 2) = 9 + 2x + 5 step 2: 12x − 2 = 14 + 2x step 3: 12x − 2x = 14 + 2 step 4: 10x = 16 step 5: x = 1.6 in which step did the student first make an error and what is the correct step? 1) step 2: 12x − 2 = 4 + 2x 2) step 2: 12x − 6 = 14 + 2x 3) step 3: 12x + 2x = 14 + 2 4) step 3: 12x − 2x = 14 − 2
Answers: 2
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The work of a student trying to solve the equation 3(4x − 2) = 9 + 2x + 5 is shown below: step 1:...
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