Assuming the equation is:
5/(x-5) = x/(x-5) - 5x/4
We first multiply by the LCD: 4(x-5)
20 = 4x - 5x(x-5)
20 = 4x - 5x^2 + 25x
5x^2 - 29x + 20 = 0
(5x - 4)(x - 5) = 0
x = 4/5, 5
Substituting x = 5 gives denominators of 0, which is extraneous.
Substituting x = 4/5 gives a valid equation, so this is the only correct solution.
40 plus 22 dollars a month times 15 months equals $370
Answer:
4x - 12
Step-by-step explanation:
Expand 8 - 4(-x + 5) as follows:
8 + 4x - 20
4x - 12 (First answer is the correct one)
Answer:
Step-by-step explanation:
Start: 10 gallons
Loss: 1.75 per hour --> -1.75 gallons
After two hours 10+2(-1.75)=10-3.5=6.5 gallons left
After t hours 10+t(-1.75)=10-1.75t gallons left
