Hi! I hope this helps!
First set up your equation!
x = 45 + 1/2x + 72
Then, simplify terms!
x = 115 + 1/2x
Afterwards, multiply 115 and 1/2 by 2!
x = 115 + 1/2x
2 2
x = 230
Then, write your answer statement!
I hope you learned how to do this problem!