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Lauren had 1/5 as many seashells as Adam. Adam gave 22 seashells to Lauren so that they would each have the same amount. How many seashells did the two friends have altogether?

 Apr 17, 2021
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Given   L = 1/5 A

 

then   Adam gives 22

 

L + 22 = A - 22        sub in the red equation

1/5 A + 22 = A - 22

A = 55        L = 1/5 A = 11       Total = 66 shells

 Apr 17, 2021

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