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

To solve the equation, let's substitute x=1455 into the equation:

3(5+2(1455))+4

First, simplify within the parentheses: 3(5+2910)+4

Then, perform the addition within the parentheses: 3(2915)+4

Multiply 3 by 2915: 8745+4

Finally, perform the addition: 8751