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9y-3y=6y; 6y+2y=8y; so your answer is 8y
8y+6y is 14y
y = -1
It seems like you're presenting an expression with two parts: "-4x - 2y - 12" and "4x + 8y - 24." If you're looking to combine these two expressions, you would add them together. Doing so results in: [ (-4x - 2y - 12) + (4x + 8y - 24) = 0x + 6y - 36 = 6y - 36. ] Thus, the simplified expression is (6y - 36).
8y-7x
6y-8y = -2
-2
9y-3y=6y; 6y+2y=8y; so your answer is 8y
6y + 5
If you mean 8y-2y = 132 then 6y = 132 and the value of y is 22
8y+6y is 14y
y = -1
Not sure which you mean, take your pick: (8y)3+27=(8y+3)((8y)2-3*(8y)+9)=(8y+3)(64y2-24y+9); or 8y3+27=(2y+3)(4y2-6y+9)
Oh, dude, math time! So, you've got 8y + 4x + 6y. Just like mixing different sodas at the fountain, you can combine like terms here. So, that gives you 14y + 4x. Ta-da! Math magic.
8y-7x
The answer depends on the value of y. For example, when y = 0, 8y2 + 6y - 2 = -2 when y = 1, it is 12
If: 8y-2 = 3-2y Then: 8y+2y = 3+2 So: 10y = 5 Therefore: y = 5/10 or as a 1/2 in its simplest form