document.write( "Question 594642: in the equation 3x+7y=21 at what point is the x-axis intersected \n" ); document.write( "
Algebra.Com's Answer #376835 by mamiya(56)\"\" \"About 
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The X-axis intersected when y=0.
\n" ); document.write( " y=0 --> 3x+7(0)=21
\n" ); document.write( " --> 3x = 21
\n" ); document.write( " --> 3x/3 = 21/3
\n" ); document.write( " so, x=7\r
\n" ); document.write( "\n" ); document.write( "so that point is (7, 0)
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