Find X in the Linear Equation: 7.24x - 3.5 = 6.21

To solve the linear equation $7.24x - 3.5 = 6.21$, we will apply the following steps:

• Step 1: Add 3.5 to both sides of the equation to isolate the term containing $x$.
• Step 2: Perform the addition on the right side to simplify the expression.
• Step 3: Divide both sides by 7.24 to solve for $x$.
• Step 4: Calculate the division to obtain the value of $x$.

Let's execute these steps one by one:

Step 1: Add 3.5 to both sides:

$7.24x - 3.5 + 3.5 = 6.21 + 3.5$

This simplifies to:

$7.24x = 9.71$

Step 2: Divide both sides by 7.24 to solve for $x$:

$x = \frac{9.71}{7.24}$

Step 3: Calculate the division:

$x \approx 1.34$

Therefore, the solution to the problem is $x = 1.34$, which corresponds to Choice 3.