Question

Adicione as matrizes e determine os valores das incógnitas:
$\left[\begin{array}{ccc}x&y\\3&2z\\\end{array}\right] + \left[\begin{array}{ccc}x&3\\i&z\\\end{array}\right] = \left[\begin{array}{ccc}10&-1\\4&18\\\end{array}\right] => \left[\begin{array}{ccc}x+x=10&y+3=-1\\3+i=4&2z+z=18\\\end{array}\right]$

Answer 1

Olá Rany,

$\left[\begin{array}{ccc}x&y\\3&2z\\\end{array}\right] + \left[\begin{array}{ccc}x&3\\i&z\\\end{array}\right] = \left[\begin{array}{ccc}10&-1\\4&18\\\end{array}\right] => \left[\begin{array}{ccc}x+x=10&y+3=-1\\3+i=4&2z+z=18\\\end{array}\right]$

$x+x=10\\ 2x=10\\ \boxed{x=5}$

$y+3=-1\\ y=-1-3\\ \boxed{y=-4}$

$3+i=4\\ i=4-3\\ \boxed{i=1}$

$2z+z=18\\ 3z=18\\ \boxed{z=6}$

Bons estudos!

Answer 2

Resposta:
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