Question

How would you change x + 3y = 18 -3x - 12y = -75 to eliminate y

Answer 1

Answer:
`\bold{y=-(1)/(3)x+6}`

`\bold{y=-(1)/(4)x+(25)/(4)}`

Explanation:

x + 3y = 18

- x -x

3y = -x + 18

÷3 ÷3 ÷3

y = (-1/3)x + 6

-3x - 12y = -75

+3x +3x

-12y = 3x - 75

÷-12 ÷-12 ÷-12

y = (-1/4)x + (25/4)