document.write( "Question 700783: How do I find y for this equation? 2x-y=1 I don't understand how to solve it and then graph it along with y=-3. \n" ); document.write( "
Algebra.Com's Answer #432007 by ankor@dixie-net.com(22740)\"\" \"About 
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find y for this equation?
\n" ); document.write( "2x - y = 1
\n" ); document.write( "subtract 2x from both sides
\n" ); document.write( "-y = -2x + 1
\n" ); document.write( "y has to be positive, multiply both sides by-1
\n" ); document.write( "y = 2x - 1
\n" ); document.write( ":
\n" ); document.write( "\"graph it along with y=-3.\"
\n" ); document.write( "find x when y = -3
\n" ); document.write( "2x -1 = -3
\n" ); document.write( "2x = -3 + 1
\n" ); document.write( "2x = -2
\n" ); document.write( "x = 2/-2
\n" ); document.write( "x = -1
\n" ); document.write( ":
\n" ); document.write( "Make a table to plot a graph using above coordinates and x = -3, 0 and +2
\n" ); document.write( " x | y
\n" ); document.write( "------
\n" ); document.write( "-3 |-7; replace x with -3, find y to be -7
\n" ); document.write( "-1 |-3
\n" ); document.write( " 0 |-1
\n" ); document.write( "+2 |+3
\n" ); document.write( ":
\n" ); document.write( "Plot these points, your graph should look like this
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-8%2C+8%2C+2x-1%29+\" \n" ); document.write( "
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