document.write( "Question 742303: I am 17, My dad is 49, how old does he need to be twice my age.
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Algebra.Com's Answer #452397 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Let x = number of years need until he is twice your age\r
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\n" ); document.write( "\n" ); document.write( "So if you add x years to your 17 years of age, you will be 17+x years old (in x years from now)\r
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\n" ); document.write( "\n" ); document.write( "He will be 49+x years old (x years from now)\r
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\n" ); document.write( "\n" ); document.write( "You want him to be twice your age, so this means\r
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\n" ); document.write( "\n" ); document.write( "(His age x years from now) = 2*(your age x years from now)\r
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\n" ); document.write( "\n" ); document.write( "49+x = 2(17+x)\r
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\n" ); document.write( "\n" ); document.write( "and that's your initial equation. I won't solve it for you because you just wanted the equation, but I figured the answer doesn't hurt (so you can check). The solution to the equation above is x = 15. This means that in 15 years, he will be twice your age. So in 15 years you will be 17+15 = 32 and he will be 49+15 = 64.
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