Question 358054
 Need to label the variable (x=the unknown) then write and solve the equation for:
A chest was resting on the ocean floor 500 ft below the surface. It was lifted to the deck of a ship 16ft above the surface. How far was the chest lifted? 
Is the equation -500 + x = 16? How do I solve the equation? 
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Equation:
x = 500+16
x = 516 ft.
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Cheers,
Stan H.