document.write( "Question 499310: 7x=3y+7and 5y=6x+11
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Algebra.Com's Answer #337540 by oberobic(2304) $\"\"$ $\"About$

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EQ1. 7x - 3y = 7
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\n" ); document.write( "Multiply EQ1 by 5 and EQ2 by 3
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\n" ); document.write( "35x - 15y = 35
\n" ); document.write( "18x - 15y = -33
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\n" ); document.write( "Subtract EQ2 from EQ1
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\n" ); document.write( "17x = 68
\n" ); document.write( "x = 4
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\n" ); document.write( "Substitute x=4 into EQ1
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\n" ); document.write( "7x -3y = 7
\n" ); document.write( "28 -3y = 7
\n" ); document.write( "-3y = -21
\n" ); document.write( "y = 7
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\n" ); document.write( "Always check your work.
\n" ); document.write( "Substitute these values into EQ2.
\n" ); document.write( "(You cannot use EQ1 again.)
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\n" ); document.write( "5y = 35
\n" ); document.write( "6x = 24
\n" ); document.write( "6x+11 = 35
\n" ); document.write( "5y = 6x+11 true
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\n" ); document.write( "Answer:
\n" ); document.write( "x = 4
\n" ); document.write( "y = 7
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\n" ); document.write( "Done. \n" ); document.write( "

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