document.write( "Question 1149940: Craig is 4 years older than Colleen. Their total age is 76 years. How old are they? This is a linear equation. \n" ); document.write( "
Algebra.Com's Answer #854500 by ikleyn(53908) You can put this solution on YOUR website! . \n" ); document.write( "Craig is 4 years older than Colleen. Their total age is 76 years. How old are they? This is a linear equation. \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " The solution and the answer in the post by @addingup are incorrect. \n" ); document.write( " Anyone can easy check incorrectness by adding the values of the @addingup answer.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " I came to bring a correct solution.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let Colleen's age be x years. \n" ); document.write( "Then Craig age is (x+4) years. (Craig is 4 years older than Colleen)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x + (x+4) = 76 (their combined age) \n" ); document.write( "2x + 4 = 76 \n" ); document.write( "2x = 76 - 4 \n" ); document.write( "2x = 72 \n" ); document.write( "x = 72/2 \n" ); document.write( "x = 36 \n" ); document.write( "So Colling is 36 years old and Craig is 36 + 4 = 40 years old. ANSWER\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Solved correctly.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |