20,21,22,23 are the ones I need help on if you can help I’ll mark you as super smart !!!
![20212223 are the ones I need help on if you can help Ill mark you as super smart class=](https://us-static.z-dn.net/files/dcb/e90c369670b3fb9daf2ce5b8dd054b83.png)
On 20 and 21 you have to do 120=10x-10 and solve as a linear eqaution and 6x+10= 8x+2 and solve as a linear equation for 23 you would do 4x+1+2x+3=124 I dont Know about 22 though.
Hope this helps!!