document.write( "Question 179262: I am 32, my sister is 18. How old will I be when I am 3x's her age? \n" ); document.write( "
Algebra.Com's Answer #134187 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! I am 32, my sister is 18. How old will I be when I am 3x's her age? \n" ); document.write( "------------------------------ \n" ); document.write( "Let the year difference be \"x\" yrs. \n" ); document.write( "Equation: \n" ); document.write( "my age then = 3(sister's age then) \n" ); document.write( "(32+x) = 3(18+x) \n" ); document.write( "32+x = 54 + 3x \n" ); document.write( "2x = -22 \n" ); document.write( "x = -11 \n" ); document.write( "-------------- \n" ); document.write( "I will be 32-11 = 21 \n" ); document.write( "Sister will be 18-11 = 7 \n" ); document.write( "========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |