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anonymous
 one year ago
How can we create equations in one variable and use them to solve problems?
anonymous
 one year ago
How can we create equations in one variable and use them to solve problems?

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.3We let the unknown equal a variable. Then we translate the word problem into an algebraic equation using that variable. Then we solve the equation. Then we try the solution in the word problem to make sure it works and makes sense.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Your awesome! (: thanks so much!!!

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.3Example: Word problem: "A number multiplied by 5 equals 15. What is the number?" Solution: choose a variable: let x equal the number. Write an equation: 5x = 15 Solve the equation: divide both sides by 5 x = 3 Test the solution in the original word problem to see if it is correct and makes sense. When 3 is multiplied by 5, we do get 15, so the solution x = 3 makes sense. Answer: the number is 3.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.3Thanks, and you're welcome.
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