Hey :)
x= 5
First use distributive property to multiply 3 with 2x and 3 with -3
6x-9 + 3 = 24
Find like terms, which are -9 and 3
6x-6 = 24
Take the -6 to the other side, now it’s positive
6x = 24+6
Now add them together
6x= 30
Now take 6 to the other side, it becomes division
x = 30/6
x = 5
Hope this helps!