To solve the equation [tex]\(2x - 4 = 20\)[/tex] correctly, let's follow a step-by-step process:
1. Add 4 to both sides:
[tex]\[
2x - 4 + 4 = 20 + 4
\][/tex]
Simplifying, we get:
[tex]\[
2x = 24
\][/tex]
2. Divide both sides by 2:
[tex]\[
\frac{2x}{2} = \frac{24}{2}
\][/tex]
Simplifying, we get:
[tex]\[
x = 12
\][/tex]
Therefore, the correct process for solving the equation [tex]\(2x - 4 = 20\)[/tex] is to add 4 to both sides and then divide by 2. This leads to the solution [tex]\(x = 12\)[/tex].
The correct choice is:
a) Add 4 to both sides, and then divide by 2. The solution is [tex]\(x = 12\)[/tex].
