The sum of three numbers is 26. The second number is twice the first and the third number is 6 more than the second. Find the numbers. Use the V.E.S.T. system. Can someone explain how to use VEST?
Google says "variable, equation, solve it, test it" Start by writing out the variables. We know that the first variable is some unknown number. What is that?
The variables would be the first number (x), the second number (2x) and the third number (x+6) ... Right? @bibby
Exactly. Now fir that into the equation "The sum of three numbers is 26. "
So... x+2x+2x+6=26? @bibby
yes combine like terms
5x+6=26?
yes
Okay now I know to take the 6 and subtract. It'd be 5x=20. Then divide: so x=4. But what do I do to get the other two numbers.
you have 3 numbers x 2x 2x+6 and x=4
x= 4 2x= 8 2x+6= 14 ??? Is that right?
yiss
Thank you. I thought it was more complex than that. I appreciate it!
no problem
Join our real-time social learning platform and learn together with your friends!