document.write( "Question 435120: Could someone please show me step by step how to solve the system of equations by graphing then to classify the system?
\n" ); document.write( "x + y =9
\n" ); document.write( "x - y = -5 \n" ); document.write( "

Algebra.Com's Answer #301237 by mananth(16946) $\"\"$ $\"About$

You can put this solution on YOUR website!
1 x + 1 y = 9 .............1
\n" ); document.write( "1 x + -1 y = -5 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 1
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "1 x + 1 y = 9
\n" ); document.write( "1 x + -1 y = -5
\n" ); document.write( "Add the two equations
\n" ); document.write( "2 x = 4
\n" ); document.write( "/ 2
\n" ); document.write( "x = 2
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "1 x + 1 y = 9
\n" ); document.write( "2 + 1 y = 9
\n" ); document.write( " 1 y = 9-2
\n" ); document.write( " 1 y = 7
\n" ); document.write( " y = 7
\n" ); document.write( "Find the x & y intercepts of the two lines. Plot the points. Draw the lines. The point of intersection is the solution\r
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