Solve 5 over x minus 5 equals the quantity of x over x minus 5, minus five fourths for x and determine if the solution is extraneous or not. (1 point)
Accepted Solution
A:
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.