document.write( "Question 216777: Mark is 10 years younger than Larry. Larry's age 8 years from now will exceed twice Mark's age 3 years ago by 4 years. Hold old is each now? Please help with step and answer.\r
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Algebra.Com's Answer #163653 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Let M = Mark's age now \n" ); document.write( "Let L = Larry's age now \n" ); document.write( ": \n" ); document.write( "Write an equation for each statement: \n" ); document.write( ": \n" ); document.write( "\"Mark is 10 years younger than Larry. \" \n" ); document.write( "M = L - 10 \n" ); document.write( ": \n" ); document.write( "\"Larry's age 8 years from now will exceed twice Mark's age 3 years ago by 4 years.\" \n" ); document.write( "(L + 8) = 2(M - 3) + 4 \n" ); document.write( "L + 8 = 2M - 6 + 4 \n" ); document.write( "L + 8 = 2M - 2 \n" ); document.write( "L = 2M - 2 - 8 \n" ); document.write( "L = 2M - 10 \n" ); document.write( ": \n" ); document.write( "Replace M with (L-10) from the 1st statement equation \n" ); document.write( "L = 2(L-10) - 10 \n" ); document.write( "L = 2L - 20 - 10 \n" ); document.write( "L = 2L - 30 \n" ); document.write( "+30 = 2L - L \n" ); document.write( "L = 30 is Larry's present age \n" ); document.write( "then \n" ); document.write( "M = L - 10 \n" ); document.write( "M = 30 - 10 \n" ); document.write( "M = 20 is Marks age \n" ); document.write( "; \n" ); document.write( ": \n" ); document.write( "Check solution in the statement \n" ); document.write( "\"Larry's age 8 years from now will exceed twice Mark's age 3 years ago by 4 years.\" \n" ); document.write( "30 + 8 = 2(20-3) + 4 \n" ); document.write( "38 = 2(17) + 4\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |