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anonymous
 one year ago
Nine equals five times an unknown number less three times the same number?
anonymous
 one year ago
Nine equals five times an unknown number less three times the same number?

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Let the unkown number be x.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1What is three times the number?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(\sf Nine ~equals ~five ~times ~an ~unknown ~number ~less \color{red}{~three ~times ~the ~same ~number}? \) \(~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\color{red}{3x}\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(\sf Nine ~equals ~five ~times ~an ~unknown ~number \color{green}{~less} \color{red}{~three ~times ~the ~same ~number}?\) \(~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\color{green}{}~~~~~~~~~~~~~~~~~~\color{red}{3x}\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(\sf Nine ~equals \color{blue}{~five ~times ~an ~unknown ~number} \color{green}{~less} \color{red}{~three ~times ~the ~same ~number}?\) \(~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\color{blue}{5x}~~~~~~~~~~~~~~~~~~~~\color{green}{}~~~~~~~~~~~~~~~~~~\color{red}{3x}\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(\sf \color{purple}{Nine ~equals} \color{blue}{~five ~times ~an ~unknown ~number} \color{green}{~less} \color{red}{~three ~times ~the ~same ~number}?\) \(~~~~~\color{purple}{9=}~~~~~~~~~~~~~~~~~~~~~~~~~~~\color{blue}{5x}~~~~~~~~~~~~~~~~~~~~\color{green}{}~~~~~~~~~~~~~~~~~~\color{red}{3x}\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1After deleting the spaces and colors, you wend up with: \(\large 9=5x3x\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now we can solve the equation for x, the unknown number.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(\large 5x  3x = 9\) Do the subtraction on the left side: \(\large 2x = 9\) Divide both sides by 2: \(\large x = 4.5\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Answer: the number is 4.5
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