Question

Utilize a igualdade de matrizes para obter o valor das variaveis

x; y; z e w

Answer 1

x-y=8

y+z=1

3w+z=7

2x-4w=6

x-y=8

y+z=1

3w+z=7

x-2w=3

x=3+2w

x=8+y

8+y=3+2w

5=2w-y

y=2w-5

z=7-3w

2w-5+7-3w=1

-w=-1

w=1

y=-3

z=4

x=5

$\boxed{ \boxed{ \mathsf{x = 5. \: \: y = - 3. \: \: z = 4. \: \: w = 1}}}$

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