document.write( "Question 1036828: Three times the ages of Philip is 4 more then the ages of Isaac in 3 years the sum of their ages will be 30 years. Find their present ages. \n" ); document.write( "
Algebra.Com's Answer #651745 by ankor@dixie-net.com(22740)\"\" \"About 
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let p = P's present age
\n" ); document.write( " let i = I's age
\n" ); document.write( ":
\n" ); document.write( "Write an equation for each statement:
\n" ); document.write( " Three times the ages of Philip is 4 more then the age of Isaac
\n" ); document.write( "3p = i + 4
\n" ); document.write( "3p - i = 4
\n" ); document.write( "in 3 years the sum of their ages will be 30 years.
\n" ); document.write( "(p+3) + (i+3) = 30
\n" ); document.write( "p + i + 6 = 30
\n" ); document.write( "p + i = 30 - 6
\n" ); document.write( "p + i = 24
\n" ); document.write( "Use elimination on these two equations
\n" ); document.write( "3p - i = 4
\n" ); document.write( "p + i = 24
\n" ); document.write( "-----------------addition eliminates i, find p
\n" ); document.write( "4p = 28
\n" ); document.write( "p = 28/4
\n" ); document.write( "p = 7 yrs is P's present age
\n" ); document.write( ":
\n" ); document.write( "Use 3p = i + 4 to find p
\n" ); document.write( "3(7) = i + 4
\n" ); document.write( "21 = i + 4
\n" ); document.write( "21 - 4 = i
\n" ); document.write( "17 = i
\n" ); document.write( "i = 17 yrs is I's age
\n" ); document.write( ";
\n" ); document.write( "you can confirm these solutions in the 2nd statement
\n" ); document.write( "\" in 3 years the sum of their ages will be 30 years.\"
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