document.write( "Question 131370This question is from textbook McDougal Littell Algebra 1
\n" ); document.write( ": If y - x = -3 and 4x + y = 2, then what does x equal? \n" ); document.write( "
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SOLUTION -
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\n" ); document.write( " Y - X = -3
\n" ); document.write( " Y = -3 + X ......(I)
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\n" ); document.write( " 4X + Y = 2
\n" ); document.write( " substituting the value of y from equation (i) we have
\n" ); document.write( " 4x +(-3 + x) = 2
\n" ); document.write( " 4x - 3 + x = 2
\n" ); document.write( " 5x -3 + + 3 = 2 + 3
\n" ); document.write( " 5x = 5
\n" ); document.write( " 5x/5 = 5/5
\n" ); document.write( " x = 1
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\n" ); document.write( " substituting the value of x in equation (i)we have
\n" ); document.write( " y = -3 + 1
\n" ); document.write( " y = -2\r
\n" ); document.write( "\n" ); document.write( " therefore x = 1
\n" ); document.write( " y = -2
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