Answer:
y = -4
Step-by-step explanation:
12y + 4 = 8y-12
Subtract 8y from each side
12y - 8y +4 = -12
4y +4 = -12
Subtract 4 from each side
4y +4-4 = -12 -4
4y = -16
Divide by 4
4y/4 = -16/4
y = -4
The answer is 3x^3+15x^2-12x.
It will cost $14,400 to do the triangle the hotel plans to do.
(15 is your answer)
Divide numerator by denominator, cancel out any common factors
