Solve for r.

5>

2r+3≥

11
Write your answer as a compound inequality with integers.

1 answer

To solve the inequality

\[ 5 - 2r + 3 \geq -11, \]

first, combine like terms on the left side.

\[ 5 + 3 = 8, \]

so we have:

\[ 8 - 2r \geq -11. \]

Next, subtract 8 from both sides:

\[ -2r \geq -11 - 8, \]

which simplifies to:

\[ -2r \geq -19. \]

Now, divide by -2. Remember that when you divide or multiply by a negative number, you must reverse the inequality sign:

\[ r \leq \frac{-19}{-2} \Rightarrow r \leq 9.5. \]

Since the problem asks for integers, we can conclude that:

\[ r \leq 9. \]

Since there is no lower boundary given in the original problem, let's assume \( r \) can take any integer value less than or equal to 9. Thus, we can express this as:

\[ r \in (-\infty, 9]. \]

Therefore, as a compound inequality for integers, the solution is:

\[ r \leq 9. \]

In terms of integers, the answer is:

\[ r \in {\ldots, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. \]