Explore a diverse range of topics and get answers from knowledgeable individuals on IDNLearn.com. Our experts are ready to provide prompt and detailed answers to any questions you may have.

Quiz 3

Tyler tried to solve an equation step by step.

[tex]\[
\begin{array}{l}
3(x+4)=-18 \\
3x + 12 = -18 \quad \text{(Step 1)} \\
3x = -30 \quad \text{(Step 2)} \\
x = -10 \quad \text{(Step 3)} \\
\end{array}
\][/tex]

Find Tyler's mistake.

Choose one answer:
A. Step 1
B. Step 2
C. Step 3
D. Tyler did not make a mistake.


Sagot :

To assess Tyler's solution, let's break down the steps and confirm each part of the solution:

### Original Equation:
[tex]\[ 3(x + 4) = -18 \][/tex]

### Step 1:
Distribute the 3 on the left-hand side:
[tex]\[ 3 \cdot x + 3 \cdot 4 = -18 \][/tex]
[tex]\[ 3x + 12 = -18 \][/tex]

### Step 2:
Subtract 12 from both sides to isolate the term with the variable \( x \):
[tex]\[ 3x + 12 - 12 = -18 - 12 \][/tex]
[tex]\[ 3x = -30 \][/tex]

### Step 3:
Divide both sides by 3 to solve for \( x \):
[tex]\[ \frac{3x}{3} = \frac{-30}{3} \][/tex]
[tex]\[ x = -10 \][/tex]

Based on the detailed steps, it's clear that each arithmetic operation was performed correctly without any errors.

### Conclusion:
Tyler did not make a mistake at any step of the solution. Everything from distributing the terms to isolating the variable and then solving for \( x \) was done accurately. Therefore, the correct answer is:

Tyler did not make a mistake.
We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Your questions deserve reliable answers. Thanks for visiting IDNLearn.com, and see you again soon for more helpful information.