Solve for n.

n–2+5n≤10 or n–9≥6–2n
Write your answer as a compound inequality with integers.

1 answer

To solve the inequalities \( n - 2 + 5n \leq 10 \) and \( n - 9 \geq 6 - 2n \), we will solve each inequality separately.

First inequality:

\[ n - 2 + 5n \leq 10 \]

Combine like terms:

\[ 6n - 2 \leq 10 \]

Add 2 to both sides:

\[ 6n \leq 12 \]

Now, divide by 6:

\[ n \leq 2 \]

Second inequality:

\[ n - 9 \geq 6 - 2n \]

Add \( 2n \) to both sides:

\[ n + 2n - 9 \geq 6 \]

Combine like terms:

\[ 3n - 9 \geq 6 \]

Add 9 to both sides:

\[ 3n \geq 15 \]

Now, divide by 3:

\[ n \geq 5 \]

Conclusion:

The solution set for the first inequality is \( n \leq 2 \) and for the second inequality is \( n \geq 5 \). Since these two inequalities are connected by "or", the final solution in terms of a compound inequality is:

\[ n \leq 2 \quad \text{or} \quad n \geq 5 \]

Thus, the final answer in terms of integers is:

Answer: \( n \in (-\infty, 2] \cup [5, \infty) \)