2 answers
(click or scroll down)
To solve the equation 2x + 5 = 21, follow these steps:
Step 1: Subtract 5 from both sides of the equation:
2x + 5 - 5 = 21 - 5
This simplifies to:
2x = 16
Step 2: Divide both sides of the equation by 2 to isolate x:
(2x)/2 = 16/2
This simplifies to:
x = 8
So, the solution to the equation 2x + 5 = 21 is x = 8.