Question

Solving with a matrix. Enter the answer as an ordered pair.

4x - y = 10
8x + 5y = 34

Answer 1

4 -1 10
8 5 34
multiplying the first row by 2

8 -2 20
8 5 34
subtract
8 -2 20
0 7 14

so 7y=14
y=2

8x-2*2=20
x=3

Answer 2

i'm not sure it is "solving with matrix"

Answer 3

I think it is.

Answer 4

yeah it's possible, but i would have solved Ax = B by inverting A and multypling it to B...

Answer 5

It is solving with Matrix. I just didn't understand how to get a point from it.

Answer 6

to get a point you just have to take (x, y). just be careful with the order, it's always x before y