Yes, 6 and 9y are unlike terms. The 6 is a constant and 9y is constant attached to a variable.
9y-3 = 6
(-y+4)+ (9y-6) (9y-y) + (4-6) 8y - 2
-3x+9y = 6 9y = 3x+6 y = 1/3x+2/3
They are like terms.
To simplify this expression, you combine your like terms (9y and 1y). 9y - 1y = 8y 8y - 25 is your answer. It can't be simplified any further than that.
It is 3 terms of an algebraic expression
If you mean: -3x+9y = -6 then it is y = 1/3x-2/3
fish
y=6
Y=6
2x + 3y + 4x + 9y = 2x + 4x + 3y + 9y = 6x + 12y which can be simplified to 6(x + 2y)
y = -1