exam Maths Puzzle Numerical Ability

Find X & SHOW WORK

sorry,equation is not from any book. Made by teacher

n^2+48=16+12n

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exam Other Question

Help! I have looked at your examples for finding the degree of a polynomial expression but still do not understand. Please help with finding the degree for x^2-x-x^5. Thank you. Colby drove 405 miles in 7 hours. He drove 55 mph for the first part of the trip and 60 mph for the second part of the trip. how long did he drive at 55 mph ?