College

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**Practice & Problem Solving**

Complete the equations to find the number of solutions.

7. Classify the equation [tex]33x + 99 = 33x - 99[/tex] as having one solution, no solution, or infinitely many solutions.

[tex]
\[
\begin{array}{c}
33x + 99 = 33x - 99 \\
33x - \square + 99 = 33x - \square - 99 \\
99 \square - 99
\end{array}
\]
[/tex]

Since 99 is not equal to -99, the equation has no solution.

Answer :

To determine the number of solutions for the equation [tex]\(33x + 99 = 33x - 99\)[/tex], we can follow these steps:

1. Start by simplifying the equation:
[tex]\[
33x + 99 = 33x - 99
\][/tex]

2. Subtract [tex]\(33x\)[/tex] from both sides:
[tex]\[
33x + 99 - 33x = 33x - 99 - 33x
\][/tex]
Simplifying both sides results in:
[tex]\[
99 = -99
\][/tex]

3. Analyze the result:
The equation simplifies to [tex]\(99 = -99\)[/tex], which is a contradiction. This means that the left side is not equal to the right side for any value of [tex]\(x\)[/tex].

4. Conclusion:
Since simplifying the equation leads to a contradiction, it indicates that there are no values of [tex]\(x\)[/tex] that can satisfy the equation. Therefore, the equation has no solutions.