To solve the equation 2x + 5 = 21, we can follow these steps:
1. Start by subtracting 5 from both sides to isolate the term with x:
2x + 5 - 5 = 21 - 5
This simplifies to: 2x = 16
2. Divide both sides of the equation by 2 to solve for x:
2x/2 = 16/2
This simplifies to: x = 8
Therefore, the solution to the equation 2x + 5 = 21 is x = 8.
Determine the solution to the following problem: 2x + 5 = 21
1 answer