Question

9 - 4d ≥ -3
choose 1 answer:

Explanation:

Step1: Subtract 9 from both sides

To isolate the term with \( d \), we subtract 9 from both sides of the inequality \( 9 - 4d \geq -3 \).
\[
9 - 4d - 9 \geq -3 - 9
\]
Simplifying both sides, we get:
\[
-4d \geq -12
\]

Step2: Divide by -4 (and reverse inequality)

When dividing an inequality by a negative number, the direction of the inequality sign reverses. We divide both sides by -4.
\[
\frac{-4d}{-4} \leq \frac{-12}{-4}
\]
Simplifying both sides, we find:
\[
d \leq 3
\]

Answer:

\( d \leq 3 \)