Question

esse solved a system of equations.. Find and explain the mistakes.
Equation:
y = 3x + 2
6x – 2y = 10

Answer 1

I used matrices. The solution is (7/6, 7/2)

Answer 2

you should have the variables on one side of the equation

Answer 3

I mean
-3x + y =2
6x - 2y = 10

Answer 4

try now to calculate the determinant

Answer 5

I don't know how to calculate a determinant .-. @Fifciol

Answer 6

in your attachment, there is a system determinant, we need to correct. There should be -3 instead of 3. Then you'd obtain, that this determinant is 0, which means this system of equation has no solution

Answer 7

Ok. Thank you!