? + (7x + 21) =180
7x+ ? = 180
7x = ?
X= ?
![7x 21 180 7x 180 7x X class=](https://us-static.z-dn.net/files/db4/e7fb639d8ebb14184aa4a704052dcde7.png)
12
Step-by-step explanation:
i think its 72+7x+24
72+24=96
7x+96=180
7x=84
x=12
you can use mathpapa if you have algebra questions