Question

Determine os numeros reais x e y na igauldade: $\left[\begin{array}{ccc}5x&-2y&-4\\6x&+4y&-11\end{array}\right] = \left[\begin{array}{ccc}26&-4&\4&12&-11\end{array}\right]$

Answer 1

Boa noite

5x - 2y = 26,
6x + 4y = 12
10x - 4y = 52
16x = 64 

x = 4
20 - 2y = 26
2y = -6
y = -3

S = (4, -3) 

Answer 2

5x - 2y = 26
6x + 4y = 12
10x 4y = 52

26x = 64
X= 64/16
X = 4

X =4
20- y = -26
2y = -6
Y = 6/2
Y = -3

A = (4, - 3)