Question

Determine X+Y+Z+W
Preciso da resolução

Answer 1

Resposta:

.

Explicação passo-a-passo:

$3.\left[\begin{array}{ccc}x&y\\z&w\end{array}\right] = \left[\begin{array}{ccc}x&6\\-12&w\end{array}\right] + \left[\begin{array}{ccc}4&x+y\\z+w&3\end{array}\right]\\\\\left[\begin{array}{ccc}3x&3y\\3z&3w\end{array}\right] = \left[\begin{array}{ccc}x+4&6+x+y\\-12 + z + w&w +3\end{array}\right]$

3x = x +4

3x -x = 4

2x = 4

x = 2

3w = w +3

3w -w = 3

2w = 3

w = 3/2

3z = -12 +z +3/2

3z -z = -12 +3/2

2z = -21/2

z = -21/2.1/2

z = -21/4

3y = 6 +2 +y

3y -y = 8

2y = 8

y = 4

2 +3/2 +(-21/4) +4

6 +3/2 -21/4

6 -30/8

6 -15/4

9/4

Dúvidas só perguntar!