Question

HELP! The answer is 3 but I can't seem to get to the answer, instead I keep getting -3.

Answer 1

3

Explanation:

To eliminate the x on the denominator, multiply all terms by x

45x - 90 = 15x ( subtract 45x from both sides )

- 90 = - 30x ( divide both sides by - 30 )

3 = x ⇒ x = 3

Answer 2

x=3

Explanation:

`45-(90)/(x) = 15`

Minus 45 from both sides

`-(90)/(x)=-30`

Multiply both sides x

`-90=-30x`

Divide both sides by -30

`3=x`