jesse writes an expression that is equivalent to 10 - 2d - 4 + 12d. is jesse correct? yes. jesse is correct…

jesse writes an expression that is equivalent to 10 - 2d - 4 + 12d. is jesse correct? yes. jesse is correct. no. he makes a mistake when he writes the expression as a sum in step 1. no. he makes a mistake when he groups the like terms in step 2. no. he makes a mistake when he combines the like terms in step 3. 10 - 2d - 4 + 12d = 10+( - 2d)+( - 4)+12d step 1 =10+( - 4)+(2d + 12d) step 2 = 6 + 14d step 3
Answer
Explanation:
Step1: Rewrite as sum
$10 - 2d-4 + 12d=10+( - 2d)+(-4)+12d$
Step2: Group like - terms
$=[10+( - 4)]+(-2d + 12d)$
Step3: Combine like - terms
$=6 + 10d$
The original work got $6 + 14d$ in Step 3, which is wrong when combining the $d$ terms.
Answer:
No. He makes a mistake when he combines the like terms in Step 3.