The average time it takes to manufacture a car in the United States is
.
This is s longer than the average time it takes to manufacture a car in Japan.
Write and solve an equation.
\Let represent the average time to manufacture a car in japan.
The time to manufacturer a car in the United States plus to the manufacture a car in Japan.
The equation is .
Find the average time in Japan.
\ (Orginal equation)
(Subtract
from each side)
(Apply additive inverse property :
)
Therefore, the average time to manufacture a car in japan is .
The equation is .
The average time to manufacture a car in japan is .