3 + 6x = 21

Answer 1

To solve the equation 3 + 6x = 21, we need to isolate the variable x by performing inverse operations.

First, subtract 3 from both sides of the equation:

3 + 6x - 3 = 21 - 3

This simplifies to:

6x = 18

Next, divide both sides of the equation by 6 to solve for x:

(6x)/6 = 18/6

This simplifies to:

x = 3

Therefore, the solution to the equation 3 + 6x = 21 is x = 3.