help!!! 10 points and marked brainliest 
                                             
                                          
                                          
                                        
											 
											Answer:
x = 31
Step-by-step explanation:
13 + 6 + 2x - 18 = 4x - 29
1 + 2x = 4x - 29
30 + 2x = 4x
30 = 2x
15 = x
4(15) - 29
60 - 29
31 is the unknown measurement