I'm sorry but what's the full question?
You multiply -21 by 14 to find x, and that would be -21 x 14 = -294, and that is your answer.
Answer:
24hours
Step-by-step explanation:
let Evan be x, Tyler=x-12,equate;1/x+1/(x-12)=1/8,to get x=24 or 4.The correct value of x=24 because if you take x=4 means that Tyler=-8hours which is impossible
43.96 is what i got! im sorry if i got it wrong