Answer:
8 inches is left in the pool
the 3rd answer should be the correct one
Well I don't know !
Let's work it out together:
3(x - 2) = -3x + 42
Eliminate parentheses: 3x - 6 = -3x + 42
Add 6 to each side: 3x = -3x + 48
Add 3x to each side: 6x = 48
Divide each side by 6 : x = 8
Answer: x=95 and y=17
Step-by-step explanation:
X-y=78
6y=7+x
6y-7=x
6y-7-y=78
5y-7=78
5y=85
y=17
x-17=78
x=78+17
x=95