Final answer:
To solve for x in the equation 3(3x + 3) - 5x - 4 = 25, distribute the 3, combine like terms, isolate the variable x, and divide both sides by 4 to solve for x.
Step-by-step explanation:
To solve for x in the equation 3(3x + 3) - 5x - 4 = 25, we can start by distributing 3 to both terms inside the parentheses:
9x + 9 - 5x - 4 = 25
Next, combine like terms to simplify the equation:
4x + 5 = 25
Then, isolate the variable x by subtracting 5 from both sides:
4x = 20
Finally, divide both sides by 4 to solve for x:
x = 5