# At the end of a certain year, the four companies with the largest number of home Internet users in the United States were Microsoft, Time Warner, Yahoo, and Google, with a combined audience of 284 million users. Taking x to be the Microsoft audience in millions, y the Time Warner audience in millions, z the Yahoo audience in millions, and u the Google audience in millions, it was observed that     z − u = 3(x − y) + 12     x + y = 44 + z + uand  x − y + z − u = 36. How large was the audience of each of the four companies at the end of that year?Microsoft      millionTime Warner      millionYahoo      millionGoogle       million

Question
Asked Sep 21, 2019
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At the end of a certain year, the four companies with the largest number of home Internet users in the United States were MicrosoftTime WarnerYahoo, and Google, with a combined audience of 284 million users. Taking x to be the Microsoft audience in millions, y the Time Warner audience in millions, z the Yahoo audience in millions, and u the Google audience in millions, it was observed that

 z − u = 3(x − y) + 12 x + y = 44 + z + u and x − y + z − u = 36.

How large was the audience of each of the four companies at the end of that year?

 Microsoft million Time Warner million Yahoo million Google million
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Step 1

To solve for the 4 unknowns (in millions) using 4 equations

Step 2

4 equations in 4...

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