3(5+2x)+4 x=1455

To find the value of the expression 3(5+2x)+4 with x=1455, we substitute x with 1455 and simplify the expression.

3(5+2(1455))+4

First, we simplify the term inside the parentheses:

3(5+2910)+4

Next, we do the addition inside the parentheses:

3(2915)+4

Now, we multiply 3 by 2915:

8745+4

Adding the two numbers:

8749

Therefore, the value of the expression 3(5+2x)+4 with x=1455 is 8749.