Question

use the numbers shown on the cards to solve each problem.
using any two numbers shown on the cards, complete the equation that results in the greatest possible value of x.
1 x = 9
using any two numbers shown on the cards, complete the equation that results in the least possible value of x.
? x = ?
cards: 1, 3, 5, 9

Explanation:

Step1: Maximize $x$: isolate $x$

To get the largest $x$, we set the smaller coefficient with $x$, so $\boldsymbol{1 \cdot x = 9}$, solving gives $x=9$.

Step2: Minimize $x$: isolate $x$

To get the smallest $x$, we set the largest coefficient with $x$, so $\boldsymbol{9 \cdot x = 1}$, solving gives $x=\frac{1}{9}$.

Answer:

1. Greatest value: $1x = 9$ (or $x=9$)
2. Least value: $9x = 1$ (or $x=\frac{1}{9}$)