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Question: Betty completed solving 14 problems in her math assignment. How many problems were in her assignment, if she had to solve 18 more problems to complete the assignment?


A ) 40
B ) 44
C ) 37
D ) 32

Steps to derive

1 Let p be the number of problems in Betty's assignment.

 [Original equation].
2 p - 14 = 18

 [Adding 14 to each side.]
3 p - 14 + 14 = 18 + 14

 [Simplify.]
4 p = 32

5 The number of problems in Betty's assignment were 32.



Hence the right answer is Option D

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