Answer:
64.8cm = x + y
The maximum sleeve length, x, plus the maximum allowable deviation, y, is 62.2cm = x - y
Step-by-step explanation:
The minimum sleeve length is the ideal length, x, minus the maximum allowable deviation, y.
64.8cm + 62.2cm = x + y + x - y
127.0cm = 2x
63.5cm = x
There are now two equations with two unknowns so both variable can be solved for.
Add the equations together and solve for the ideal length, x.
64.8cm = 63.5cm + y
1.3cm = y
Substitute x into either of the original equations and solve for y.
Result:
x = 63.5cm
±y = ±1.3cm