Philip has twice as many salamanders as matt. If philip gives matt 10 of his salamanders, he will have half as many as matt. How many salamanders do philip and matt have together?
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Here, the first eq is P=2M. Now, Kaplanformulates the second equation as P-10 = 1/2(M+10).
My question is, why should the second eq not be P-10 = 1/2(M).
My question is, why should the second eq not be P-10 = 1/2(M).
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