Question

use algebra tiles to solve $3x + 1 = 4$.
$x = \square$

Explanation:

Step1: Remove 1 tile from both sides

$3x + 1 - 1 = 4 - 1$
$\implies 3x = 3$

Step2: Divide both sides by 3

$\frac{3x}{3} = \frac{3}{3}$
$\implies x = 1$

Answer:

$1$