Question

Solve the matrix equation for X.

Let A = and B = ; 4X + A = B

Answer 1

ok take this as a example consider two matrices \[A=\left[\begin{matrix}a_1 & a_2 \\ b_1 & b_2\end{matrix}\right]\\B=\left[\begin{matrix}c_1 & c_2 \\ d_1 & d_2\end{matrix}\right]\\then\\ A-B=\left[\begin{matrix}a_1-c_1 & a_2 -c_2\\ b_1-d_1 & b_2-d_2\end{matrix}\right]\]
simple term by term substraction

Answer 2

ok?

Answer 3

Umm I think, let me try and do what you said there /.\

Answer 4

yup go ahead

Answer 5

what happens to the third row of numbers?

Answer 6

just substract row wise every term

Answer 7

would it be -6.,-3 and -4.-6 ?

Answer 8

wait no is it -5,3 and -4, 6

Answer 9

ure doing A-B
u have to do (B-A)

Answer 10

How do I do that part? So its not C? But its the only one that has 5,0 in the third row

Answer 11

now just divide every term by 4