3x-15=2x+3 Find QR
It says the answer is 39 but I can’t figure out how they got 39. Please help
![3x152x3 Find QR It says the answer is 39 but I cant figure out how they got 39 Please help class=](https://us-static.z-dn.net/files/dd0/aafddfedff0f0080d4e34b7875750eed.png)