2x+5=21

Answer 1

To solve the equation 2x + 5 = 21, we need to isolate the variable x.

Subtract 5 from both sides of the equation:

2x + 5 - 5 = 21 - 5
2x = 16

Divide both sides of the equation by 2:

2x/2 = 16/2
x = 8

Therefore, the solution to the equation 2x + 5 = 21 is x = 8.