document.write( "Question 665959: John is 25 years younger than his father. The sum of their ages is 53. What is Johns age?\r
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document.write( "the choices are (1)39 (2)28 (3)25 (4)14
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Algebra.Com's Answer #414184 by ReadingBoosters(3246)![]() ![]() ![]() You can put this solution on YOUR website! Establish the equation \n" ); document.write( "x = y - 25 \n" ); document.write( "x+y = 53 \n" ); document.write( "... \n" ); document.write( "Substitute x in the second equation \n" ); document.write( "... \n" ); document.write( "y-25+y = 53 \n" ); document.write( "2y -25 = 53 \n" ); document.write( "... \n" ); document.write( "Isloate y \n" ); document.write( "2y = 53 + 25 \n" ); document.write( "2y = 78 \n" ); document.write( "... \n" ); document.write( "Divide both sides by 2 \n" ); document.write( " \n" ); document.write( "... \n" ); document.write( "Rearrange the first equation as y = x + 25 and substitute into the second equation. \n" ); document.write( "x + x + 25 = 53 \n" ); document.write( "2x + 25 = 53 \n" ); document.write( "Isolate x \n" ); document.write( "2x = 53 - 25 \n" ); document.write( "2x = 28 \n" ); document.write( "Divide both sides by 2 \n" ); document.write( " \n" ); document.write( "................ \n" ); document.write( "Delighted to help \n" ); document.write( "-Reading Boosters \n" ); document.write( "Wanting for others what we want for ourselves. \n" ); document.write( "www.MyHomeworkAnswers.com \n" ); document.write( " |