Mathematics, 12.05.2021 19:30, Molly666

Dan wanted to find an equivalent to the expression 3(x + 7) +5. His work is show Step 1: 3(x+ 7) +5= (3x + 7) +5
Step 2: 3(x + 7) + 5 = 3x + ( 7+5)
Step 3: 3(x + 7) + 5 = 3x + 12
In which step, if any, did Dan first make an error?
Step 1
Step 2
© Step 3
Dan did not make any mistakes in his work.

Answers: 2

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Dan wanted to find an equivalent to the expression 3(x + 7) +5. His work is show Step 1: 3(x+ 7) +5...