3x+21-12=8x-28
collect the like terms
3x-8x=-28(21-12=9)
-5x=-28-9
-5x=-37
x=7.4
(3.4)/(12.92)
=(3+2/5)/(12+92/100)
=(15/5+2/5)/(1200/100+92/100)
=(17/5)/(1292/100)
=(17/5)*(100/1292)
=1700/6460
=170/646
=85/323
Answer:
134
Step-by-step explanation:
The perimeter of the figure stays the same. No matter how much you translate it, it stays the same. You are changing the position of the figure, not its size or shape.