document.write( "Question 111176: Hi sir i need help
\n" ); document.write( "SOLVE GRAPHICALLY:-
\n" ); document.write( "4x+5y=7
\n" ); document.write( "3x-4y=8\r
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\n" ); document.write( "\n" ); document.write( "I am getting (y=7-4x/5 & x=8+4y/3)
\n" ); document.write( "Pls help
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Algebra.Com's Answer #81119 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
\"4x%2B5y=7\"
\n" ); document.write( "\"3x-4y=8\"
\n" ); document.write( ":
\n" ); document.write( "Easiest way is to write the equations in slope-intercept form:
\n" ); document.write( ":
\n" ); document.write( "\"5y=-4x%2B7\"
\n" ); document.write( "\"y=-4x%2F5%2B7%2F5\", and
\n" ); document.write( ":
\n" ); document.write( "\"-4y=-3x%2B8\"
\n" ); document.write( "\"y=3x%2F4-2\"
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\n" ); document.write( "Now, graph the two lines by noting that the first equation has a y-intercept of 7/5 and a slope of -4/5 (5 right, 4 down). The second equation has a y-intercept f -2 with a slope of 3/4 (4 right, 3 up).
\n" ); document.write( ":
\n" ); document.write( "\"graph%28400%2C400%2C-3%2C3%2C-3%2C3%2C-4x%2F5%2B7%2F5%2C3x%2F4-2%29\"
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\n" ); document.write( "The two lines cross at about (2.2,-1/3), roughly speaking.
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