SOLUTION: The difference of two numbers is 47. The second is 1 less than 3 times the first. What are the two numbers? Answer:X+Y=47, X=47-Y Y=3X-1 NOW SUBSTITUTE (47-Y) FOR X IN

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The difference of two numbers is 47. The second is 1 less than 3 times the first. What are the two numbers? Answer:X+Y=47, X=47-Y Y=3X-1 NOW SUBSTITUTE (47-Y) FOR X IN      Log On


   

Question 81717: The difference of two numbers is 47. The second is 1 less than 3 times the first. What are the two numbers?
Answer:X+Y=47, X=47-Y
Y=3X-1 NOW SUBSTITUTE (47-Y) FOR X IN THE THIS EQUATION & SOLVE FOR Y
Y=3(47-Y)-1, Y=141-3Y-1, Y+3Y=140, 4Y=140, Y=140/4, Y=35ANSWER.
X+35=47, X=47-35, X=12 ANSWER.
One number is: 12
And the other number is: 35

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