Describe the domain of the logarithmic function, y = log10 x.

all numbers greater than or equal to zero
all numbers less than zero
all numbers greater than zero

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

hi! i think the answer is 1/2 : )