Pancake baking calculation

Mom baked pancakes and put them on a plate. After Mike had eaten three-sevenths of them, his brother Pete came and took three-quarters of the pancakes from the plate. In the end, Jane finished the remaining 7 pancakes. How many pancakes did mom bake?

Final Answer:

n =  28

Step-by-step explanation:


n-3/7·n - 3/4·(n-(n-3/7·n))-7=0

7n = 196


n = 196/7 = 28

n = 28

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