document.write( "Question 683910: can you please help me solve this:\r
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document.write( "Solve the following system by substitution
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document.write( "-2x=8y+18
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document.write( "-33=7y-4x \n" );
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Algebra.Com's Answer #423807 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! -2x = 8y+18\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = (8y+18)/(-2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = (8y)/(-2)+18/(-2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = -4y - 9\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-------------------------------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-33 = 7y-4x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-33 = 7y-4(-4y-9)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-33 = 7y+16y+36\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-33 = 23y+36\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I'll let you finish. Once you have found the value of y, use it to find the value of x. \n" ); document.write( " |