Question

Find the values of the variables. Picture below:

Answer 1

think of all of the quadrants of each matrices to be a separate expression

for example, grouping all the top left parts of the matrices you get 15 - 2 = 13

Answer 2

therefore for x... you get 4x - x = 12

Answer 3

x=4 and y= -2? @robz8

Answer 4

looks right to me!

Answer 5

did i mix up the signs?

Answer 6

y should be positive 2 since you're dividing a negative number with a negative number

Answer 7

so it's x= -4, y= 2?

Answer 8

sorry sorry, i was mistaken...

x should be 4

y should be -2

you had it right the first time

Answer 9

oh okay, thank you!!

Answer 10

yw