Question

use the algebra tiles to solve the equation $x + 7 = 9$. click the icon to view the algebra tiles. $x = \square$

Explanation:

Step1: Isolate the variable term

To solve \( x + 7 = 9 \), we need to isolate \( x \). We can do this by subtracting 7 from both sides of the equation.
\[
x + 7 - 7 = 9 - 7
\]

Step2: Simplify both sides

Simplifying the left side, \( x + 7 - 7 \) becomes \( x \). Simplifying the right side, \( 9 - 7 = 2 \).
\[
x = 2
\]

Answer:

\( x = 2 \)