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19-09-2017
Mathematics

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Heidi has x donations for the bake sale. Grandpa Case has 2 fewer donations than Heidi. If there are 7 donations in all, which equation represents the equation to determine the value of x?

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Аноним Аноним

19-09-2017

We know that Heidi has x donations. We also know that Granpa has 2 fewer donations than Heildi, which means to subtract so x - 2. We also know that there are 7 donations in all. This tells use donations = 7 in all. So

Heidi donations = x
Grandpa = x - 2
Heidi + Grandpa = Total donations

x + (x-2) = 7

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