document.write( "Question 36117: My pre-algebra teacher,Mrs.Sanders, assigned a worksheet called Linear Equations and Inequalities.Then below that it says system of Equations: Substitution Method. \n" );
document.write( "The example is as follows; \n" );
document.write( "x-5y=10 \n" );
document.write( "-2x=y=7 then arrow points over y=2x=7 \n" );
document.write( "x-5(2x+7)=10 \n" );
document.write( "x-10x-35=10 \n" );
document.write( "-9x-35=10 \n" );
document.write( "-9x=45 \n" );
document.write( "x=-5 then it says th solutionis (-5,-3) \n" );
document.write( "And I have no idea how they got this,so can you help me out? \n" );
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