27 centimeters = 2.7 decimeters
Step by step explanation:
You first subtract z on both sides of the equal sign
ax-bx=(z-y)
Since a and b both have a "x" you can subtract them
(a-b)x=(z-y)
then you divide "x" on both sides of the equal sign

Answer:
your answer is 1/4
Step-by-step explanation:
hope this helps