document.write( "Question 1065115: if my brother is twice as old as i am and in 10 years he will be 13 years older how old am i \n" ); document.write( "
Algebra.Com's Answer #680263 by addingup(3677)\"\" \"About 
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sooo easy:
\n" ); document.write( "twice is the same at two times or we can write it as 2 x
\n" ); document.write( "brother = 2 x you
\n" ); document.write( "In 10 years:
\n" ); document.write( "brother+10 = (you+10)+13 substitute for brother:
\n" ); document.write( "(2 x you)+10 = you+10+13 subtract 10 on both sides of the equation sign
\n" ); document.write( "2you = you+13 subtract you on both sides
\n" ); document.write( "you = 13
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\n" ); document.write( "check:
\n" ); document.write( "your brother: 13 x 2 = 26
\n" ); document.write( "in 10 years:
\n" ); document.write( "13+10 = 26+10
\n" ); document.write( "23 = 36
\n" ); document.write( "and 36-23 = 13 correct, in 10 years brother will be 13 years older.
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