You have a total of 42 math and science problems. You have 10 more math problems than science problems. How many problems do you have in each subject?

Question

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Answer 1

Let m = # math problems

Let s = # science problems

 

m + s = 42

m = s + 10

 

Substitute s+10 in place of m in 1st equation

 

s+10 + s = 42

2s + 10 = 42

 

Can you finish solving for s?

Then use m = s+10 to find m.