document.write( "Question 993548: What is the ordered pair for x+y=160 and x=4y+30
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Algebra.Com's Answer #612795 by ikleyn(52790)\"\" \"About 
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\n" ); document.write( "What is the ordered pair for x+y=160 and x=4y+30?
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\n" ); document.write( "\n" ); document.write( "You are lucky!  You just have  x  expressed via  y:  x=4y+30.\r
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\n" ); document.write( "\n" ); document.write( "Now substitute it into the first equation.  In this way you will exclude  x  and will obtain a single equation for  y  only:\r
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\n" ); document.write( "\n" ); document.write( "(4y+30) + y = 160.\r
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\n" ); document.write( "\n" ); document.write( "Simplify and solve it:\r
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\n" ); document.write( "\n" ); document.write( "5y = 130,\r
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\n" ); document.write( "\n" ); document.write( "y = \"130%2F5\" = 26.\r
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\n" ); document.write( "\n" ); document.write( "Now substitute the found value of  y  into the second equation of the original system to get  x:\r
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\n" ); document.write( "\n" ); document.write( "x = 4*26 + 30 = 104 + 30 = 134.\r
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\n" ); document.write( "\n" ); document.write( "Answer.  x = 134,  y = 26.\r
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