SOLUTION: How do i put this in number form?: find 3 consecutive multiples of 3 if twice the second is 12

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Question 335071: How do i put this in number form?: find 3 consecutive multiples of 3 if twice the second is 12
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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How do i put this in number form?:
:
x, (x+3), (x+6)
:
find 3 consecutive multiples of 3 if twice the second is 12
2(x+3) = 12
divide both sides by 2
x + 3 = 6
x = 6 - 3
x = 3
:
Nos. 3, 6, 9