10+3×(x+1)=25

First, we need to simplify the expression inside the parentheses by distributing the 3:

10+3x+3=25

Next, we can combine like terms by adding 10 and 3:

3x+13=25

To solve for x, we need to isolate the variable on one side of the equation. We can do this by subtracting 13 from both sides:

3x=12

Finally, we can solve for x by dividing both sides by 3:

x=4

Therefore, the solution to the equation 10+3×(x+1)=25 is x=4.