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small compartment = s
large compartment = l
total pounds = 950 lbs
Equation
950 = s + l
Substitution
950 = 550 + s + s
Solve for s
950 - 550 = 2s
400 = 2s
s = 400/2
s = 200 lbs
Amount stowed in the small compartment = 200 lbs
Amount stowed in the large compartment = 550 + 200
= 750 lbs