Question

(04.02 MC)

Solve the system of equations. (1 point)

x + 3y = −1
2x + 2y = 6

Answer 1

(5,-2)

Explanation:

`2x+2y=6`

Divide everything by 2

`x+y=3`

`x+3y=-1`

`(x)/(3)+y=-(1)/(3)`

`y=-(1)/(3)-(x)/(3)`

`x-(1)/(3)-(x)/(3)=3`

`x-(x)/(3)=3(1)/(3)`

`(2)/(3)x=3(1)/(3)`

`(2)/(3)x=(10)/(3)`

`x=5`

`5+y=3`

`y=3-5`

`y=-2`