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Subcategories
System of 3 Equations With 3 Variables
Solution Using Substitution
It was pretty good...could belong here...
Method of Equation Addition/Subtraction
W
On the miniproblem from Challenge Explanation 5 for Day 10, I think there might be a mistake. The solution says to add the equations and I got 4a+4b+4c+4d+4e, however, the solution gets 3a+3b+3c+3d+3e. Can anyone check or confirm?
Tricks For Manipulating Equations