document.write( "Question 133041: Could someone show me how to solve this equation using the subsitution method?\r
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Algebra.Com's Answer #97261 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 5x+2y=-2 \n" ); document.write( "x=26-7y \n" ); document.write( "------------- \n" ); document.write( "Substitute the value of x in the 2nd equation into the 1st equation: \n" ); document.write( "5(26-7y)+2y = -2 \n" ); document.write( "130-35y+2y = -2 \n" ); document.write( "-33y = -132 \n" ); document.write( "y = 132/33 \n" ); document.write( "------------------ \n" ); document.write( "Substitute that into x = 26-7y to solve for \"x\": \n" ); document.write( "x = 26-7(132/33) \n" ); document.write( "x = 858/33 - 924/33 \n" ); document.write( "x = -66/33 = -2 \n" ); document.write( "=================== \n" ); document.write( "Solution: (-2,(132/33)) \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |