Answer:
y =
x +

y = 6/5 x + 9/5
Explanation:
Ax + By = C Subtract Ax from both sides
Ax - Ax + By = -AX + C
By = -AX + C Divide both sides by B
y =
x +

-6x + 5y = 9 Add 6x to both sides
-6x + 6x + 5y = 6x + 9
5y = 6x + 9 Divide both sides by 5
y = 6/5 x + 9/5