Asked by M

In a math contest of 10 problems, 5 points was given for each correct answer and 2 points was deducted for each incorrect answer. If Nancy did all 10 problems ad scored 29 points, how many correct answers did she have?
Answered by Steve
If there are x correct and y incorrect, then we have

x+y=10
5x-2y = 29

Now just solve for x.
Answered by M
can you break this down step by step? I still don't understand. Thank you. What is y =? I understand the equation just don't know how to solve. Thank you
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