Question

Solve the system of equations using Cramer's rule?
x+2y= 6
3x-4y= -22

Answer 1

x = -2

y = 4

Explanation:

Answer 2

x=-2, y=4. (-2, 4).

Explanation:

x+2y=6

3x-4y=-22

-----------------

-3(x+2y)=-3(6)

3x-4y=-22

---------------------

-3x-6y=-18

3x-4y=-22

------------------

-10y=-40

10y=40

y=40/10

y=4

x+2(4)=6

x+8=6

x=6-8

x=-2