Solve the equation 2x + 5 = 15.
a) x = 5
b) x = 7
c) x = 10
d) x = 15
To solve the equation 2x + 5 = 15, we need to isolate the variable x.
1. Start by subtracting 5 from both sides of the equation:
2x + 5 - 5 = 15 - 5
This simplifies to:
2x = 10
2. Now, we want to isolate x. Divide both sides of the equation by 2:
(2x) / 2 = 10 / 2
This simplifies to:
x = 5
Therefore, the correct answer is a) x = 5.
To solve the equation 2x + 5 = 15, we need to isolate x. Here are the steps to solve it:
Step 1: Subtract 5 from both sides of the equation:
2x + 5 - 5 = 15 - 5
This simplifies to:
2x = 10
Step 2: Divide both sides of the equation by 2:
2x/2 = 10/2
This simplifies to:
x = 5
Therefore, the solution to the equation 2x + 5 = 15 is x = 5. So the correct answer is a) x = 5.