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April 20, 2014

April 20, 2014

Posted by **laura** on Thursday, March 29, 2007 at 11:22pm.

can some explain to me how to get this

i was thinking the formula would be '

5x+12=3x

No, that's not it. The second integer is x+2, since it is "consecutive" and also odd

5x = 3(x+2) + 12

2x = 18

x = 9

you have to realize that consecutive odd numbers are two apart.

So if you call the first one x, the next one would be x+2

Now "translate" our English to Math

"5 times the first integer is 12 more than 3 times the second. "

..... 5x = 3(x+2) + 12

this solves to get x=9, and the first number is 9 and the second is 11

check: 5*9=45

3*11=33

45 is greater than 33 by 12

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