document.write( "Question 669385: Armando works part-time at a pet store. This week he earned $18 less than 4 times the amount he earned last week. His total earnings for the two weeks were $262. How much did he earn this week? \n" ); document.write( "

Algebra.Com's Answer #416356 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
Armando works part-time at a pet store. This week he earned $18 less than 4 times the amount he earned last week. His total earnings for the two weeks were $262. How much did he earn this week?
\n" ); document.write( "-------
\n" ); document.write( "Let his earnings this week be \"x\".
\n" ); document.write( "Let his earnings last week be \"y\".
\n" ); document.write( "----
\n" ); document.write( "Equations:
\n" ); document.write( "x = 4y-18
\n" ); document.write( "x + y = 262
\n" ); document.write( "----------------
\n" ); document.write( "Substitute for \"x\" and solve for \"y\":
\n" ); document.write( "4y-18 + y = 262
\n" ); document.write( "5y = 280
\n" ); document.write( "y = $56 (last week earnings)
\n" ); document.write( "----
\n" ); document.write( "Solve for \"x\":
\n" ); document.write( "x + y = 262
\n" ); document.write( "x + 56 = 262
\n" ); document.write( "x = $206 (this week earnings)
\n" ); document.write( "==================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "

\n" );