Question

Solve the system by using a matrix equation.4x-3y=66x-4y=4​

Answer 1

Answer:

The answer to your question is:

x = -6

y = -10

Step-by-step explanation:

Δ = $\left[\begin{array}{ccc}4&-3\\6&-4\end{array}\right]$

Δ = -16 + 18

Δ = 2

Δx = $\left[\begin{array}{ccc}6&-3\\4&-4\\\end{array}\right]$

Δx = -24 +12

Δx = -12

Δy = $\left[\begin{array}{ccc}4&6\\6&4\\\end{array}\right]$

Δy = 16 - 36

Δy = -20

x = -12/2 = -6

y = -20 / 2 = -10