Evaluate x3 - 3y when x = -3 and y = 4.

ok i have had it. ive seen 3 different people say the answer is -21 and that aint even an answer option. so for all u folks who were frustrated and confused. i am here to save the day.

the answer is AcTuaLLy -39

-3^3 does not mean -3 x 3. your MAD CRIINGE if u think that. and all the people who got -21 as an answer are actual raisins. -3^3 is actually -3 x -3 x -3. that would give you -27. and -27 - 12 is -39. i know. pretty simple. your welcome XDXD

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15