francesca-mitchell_60bf83a00810d
francesca-mitchell_60bf83a00810d
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x + y -2z =1 ( 1 ) 2x + y + z =0 ( 2 ) x + 4y -6z =4 ( 3 ) VAMOS FAZER A ( 1) COM A ( 2) = método de adição X + y - 2z = 1 ( 1) ( vezes - 2 para eliminar x ) 2x + y + z = 0 ( 2 ) ----------------------------- - 2x - 2y + 4z = - 2 …