Question

determine the value of x
2x + 3 = 20

Explanation:

Step1: Subtract 3 from both sides

To isolate the term with \( x \), we subtract 3 from both sides of the equation \( 2x + 3 = 20 \). This gives us \( 2x + 3 - 3 = 20 - 3 \), which simplifies to \( 2x = 17 \).

Step2: Divide by 2

Now, to solve for \( x \), we divide both sides of the equation \( 2x = 17 \) by 2. So, \( x=\frac{17}{2}=8.5 \).

Answer:

\( x = \frac{17}{2} \) (or \( x = 8.5 \))