Answer:
2x+9=12x-21
-2. -2
9=10x -21
+21 +21
30=10x
Divide by 10 on both sides
30/10
x=3
Step-by-step explanation:
Answer:
Whats the question?
Step-by-step explanation:
Srry i couldnt help
Answer:
dilation..
Step-by-step explanation:
nop nopnop nop
Answer:
0.45
Step-by-step explanation:
9/20 is the same as 0.45