Final answer:
The solution to the expression is -3x+18.
Step-by-step explanation:
To find the solution to the expression -3x+25-7, you need to simplify it. Combine the like terms first, which are the constants 25 and -7.
-3x+25-7 = -3x+18
Now, there is nothing else you can simplify, and you have reached the final expression -3x+18. This means the solution to the expression is -3x+18.
Learn more about Solving algebraic expressions