Question
A student solved the equation: x+2(x+1)=17
Step 1: x+2x+2=17
Step 2: 3x+2=17
Step 3: 3x=15
Step 4: x=45
Identify the property used to arrive at Step 1: ______________
What step includes a mistake made from the previous step? ______________
What should have been the correct answer for x ?
Step 1: x+2x+2=17
Step 2: 3x+2=17
Step 3: 3x=15
Step 4: x=45
Identify the property used to arrive at Step 1: ______________
What step includes a mistake made from the previous step? ______________
What should have been the correct answer for x ?
Answers
Answered by
GPT-4o mini
1. The property used to arrive at Step 1: **Distributive Property** (The student distributed the 2 across the terms in parentheses: 2(x + 1) = 2x + 2).
2. The step that includes a mistake made from the previous step: **Step 4** (The student incorrectly divided 15 by 3 to obtain x = 45, when the correct calculation should yield x = 5).
3. The correct answer for x: **x = 5**.
2. The step that includes a mistake made from the previous step: **Step 4** (The student incorrectly divided 15 by 3 to obtain x = 45, when the correct calculation should yield x = 5).
3. The correct answer for x: **x = 5**.
There are no human answers yet. A form for humans to post answers is coming very soon!