Answers

2014-03-26T08:40:50+08:00
Let:
Ronnie= x
Rafael=  x+10

Check the image attached for reference.

Now we put "Six years from now,he will be twice as old as Ronnie." as an equation.

It will be Rafael=Ronnie*2, which is also:
x+16 = 2(x+6)

Then, we get:
x+16 = 2x+12

Doing the necessary transposing, we get x as 4.

Hope that helps.
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2014-03-27T21:48:54+08:00
Rafael ids 20 and ronie is 14
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