Answer:
[tex]9.8x+1.1y+9.9z=p\\p=perimeter[/tex]
Step-by-step explanation:
First off, you list of the like terms together.
Here are the x terms; 5.5x, 4.3x
Here are the y terms; 6.2y, -5.1y
Here are the z terms; 8.3z, 1.6z
Now, you just add the like terms.
[tex]5.5x+4.3x=9.8x\\6.2y-5.1y=1.1y\\8.3z+1.6z=9.9z[/tex]
Finally, you just put them all together into the final equation;
[tex]9.8x+1.1y+9.9z=p\\p=perimeter[/tex]