document.write( "Question 815125: Please help me solve this linear equation?\r
\n" ); document.write( "\n" ); document.write( "Jenny’s mother is 7 times as old as Jenny is. In five years time, she will be 4 times Jenny’s age. Use simultaneous equations to determine their present ages. \n" ); document.write( "
Algebra.Com's Answer #490941 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
m = 7j
\n" ); document.write( "m + 5 = 4(j + 5)
\n" ); document.write( "m + 5 = 4j + 20
\n" ); document.write( "m = 4j + 15
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\n" ); document.write( "m = 4j + 15
\n" ); document.write( "7j = 4j + 15
\n" ); document.write( "3j = 15
\n" ); document.write( "---
\n" ); document.write( "j = 5
\n" ); document.write( "m = 35
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
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\n" ); document.write( "Convert fractions, decimals, and percents:
\n" ); document.write( "https://sooeet.com/math/fraction-decimal-percent.php
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\n" ); document.write( "Calculate and graph the linear regression of any data set:
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