Answer:
open the brackets of two sides
ie; 1.5x+6-3=4.5x-9
1.5x+3=4.5x-9
4.5x-1.5x=3+9
3x=12
X=4
88
Step-by-step explanation:
180 = (56+36)+x
180 - 92 = x
x = 88
9+10=21
Sup dude
If I'm correct the answer would be 8.
skipping by 3's