document.write( "Question 1078725: Please help me find A⁻¹ for A =(see row) and use A⁻¹ to solve the system. Thanks!
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document.write( "Row & system: https://s28.postimg.org/huda2y2b1/image.png \n" );
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Algebra.Com's Answer #693100 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! Entering the 3 x 3 equations into a matrix (A) \n" ); document.write( "then enter the constants into a 3 x 1 matrix (B) \n" ); document.write( "Enter A and press x^-1 to invert it. Then enter B. Multiply them \n" ); document.write( "A^(-1)B will give a 3 x 1 matrix which is the answer. \n" ); document.write( "-2 \n" ); document.write( "3 \n" ); document.write( "1 \n" ); document.write( "for x , y, z \n" ); document.write( "(-2, 3, -1) \n" ); document.write( " |