Answer:

Step-by-step explanation:
Let the missing integer be x
Solve for x

Move 3 to right hand side and change it's sign

The negative and positive integers are always subtracted but posses the sign of the bigger integer

Change the signs of both sides

Hope I helped!
Best regards! :D
Um there can be many answers for this. But the most convenient way would be one mile.
63,360 in is 5280 ft which is 1 mile.
Answer:
55+55+52+52=214
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