Question

CAN SOMEONE FIND THE ANSWER TO THIS ? What is itttttt.

ONLY ANSWER IF YOU KNOW !! ANY OTHER ANSWERS WILL BE REPORTED.

Answer 1

Explanation:

A*X = B

A=2x2 matrix

B= 2x1 matrix

X= 2x1 matrix of [x1;x2]

1(x1) +3(x2) = 18

0(x1) + 1(x2) = 7

so you can probably see that x2 has to be 7, from that 2nd equation

1(x1) + 3(7) = 18

x1= -3

X = [ -3 ; 7 ]

does this make sense??