Answer:
x =
or y = 3 + 4/5x
Explanation:
- 4 x - 6 = - 5 y + 9
(+ 6 on both sides)
- 4 x = - 5 y + 15
(÷ -4 on both sides)
x =

- 4 x - 6 = - 5 y + 9
( Add 4x to both sides to isolate -6 )
-6 = -5y + 9 + 4x
( Add 5y to both sides)
5y - 6 = 9 + 4x
( Minus 6 from both sides)
5y = 15 + 4x
y = 3 + 4/5x