document.write( "Question 1091284: my brother is half as old as i am. my sister is twice as old as i am. the sum of our ages is 35. how old am i? \n" ); document.write( "

Algebra.Com's Answer #705707 by MathTherapy(10553) $\"\"$ $\"About$

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\n" ); document.write( "my brother is half as old as i am. my sister is twice as old as i am. the sum of our ages is 35. how old am i?
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Let my age be M
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document.write( "Then my brother's age is:  
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document.write( "Sister's age: 2M
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document.write( "We then get: 
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document.write( "6M + M = 70 ------ Multiplying by LCD, 2
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document.write( "7M = 70
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document.write( "M, or my age =  \n" );
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