Question

Q 10 Help me please

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Answer 1

Answer:

X = [-3 5]

Step-by-step explanation:

A = [5 -3], B = [-1 7]

A + 2X = B

[5 -3] + 2[X Y] = [-1 7]

[5 -3] +[2X 2Y] = [-1 7]

5 + 2X = -1

2X = -6

X = -3

-3 + 2Y = 7

2Y = 10

Y = 5

So, Therefore, X = [-3 5]

Answer 2

Answer:

Step-by-step explanation:

Let's write the equation

$2x+A=B\\\\2x+\frac{-5}{3}=\frac{-1}{7} \\\\2x=\frac{-1}{7}- \frac{5}{3} \\\\2x=\frac{-38}{21}\\\\x=\frac{-38}{42} =\frac{-19}{21}$

∴  $x=\frac{-19}{21}$