57.3k views
9 votes
-6x+9y=-12
2x+y=0 i need help quick.
Need the answer for x and y

User Realn
by
3.9k points

1 Answer

11 votes

Answer:

x = 1/2 y = -1

Explanation:

2x + y = 0

⇒ y = -2x

Substitute y = -2x into -6x + 9y = -12 to find x:

⇒ -6x + 9(-2x) = -12

⇒ -6x - 18x = -12

⇒ -24x = -12

⇒ x = 1/2

Substitute the found value of x into y = -2x to find y:

⇒ y = -2(1/2) = -1

User Radin Reth
by
3.8k points