S is between R and T. Determine the value of x and the length of RT
                                             
                                          
                                          
                                        
											 
											Answer:
8x+3+4x+6=20x+40
Step-by-step explanation:
solve the equation for x and plug x back into the section you want to find its length
I can't explain stuff too well but I hope this helps good luck :)