⓵
You need to simplify the left side in order to isolate the x and the ỿ :
2x -3ỿ = -9
÷2 ÷2
x -3ỿ = -4,5
÷-3 ÷-3
x + ỿ = 1,5
⓶
You do the exact same thing as the first one, except with different numbers :
3x + ỿ = -8
÷3 ÷3
x + ỿ = -2,6 periodic
There you go! I hope this helped! ☻