To solve the equation 3x + 25 = 7x + 5, we need to isolate the variable x. We can do this by following these steps:
- Combine like terms: Start by getting all terms involving x on one side of the equation and constants on the other side.
- Subtract 3x from both sides:
- This simplifies to:
- Move constants: Next, we need to isolate 4x. To do this, subtract 5 from both sides:
- Now we have:
- Divide to solve for x: Finally, divide both sides by 4 to get the value of x:
- This simplifies to:
3x + 25 - 3x = 7x + 5 - 3x
25 = 4x + 5
25 - 5 = 4x + 5 - 5
20 = 4x
x = 20 / 4
x = 5
In conclusion, the solution to the equation 3x + 25 = 7x + 5 is x = 5.