Okay so will have x be the denominator.
Numerator: 4x
Fraction: [tex] \frac{4x}{x} [/tex] which would be equivalent to 4.
If you add 10 to both the numerator and denominator the resulting fraction is
[tex] \frac{4x + 10}{x + 10}= 2 [/tex]
We multiply both sides of the equal side sign times (x + 10) we get...
4x + 10 = 2 * (x + 10)
4x + 10 = 2x + 20
4x - 2x = 20 - 10
2x = 10
x = 5 < denominator
4x = 4 * 5 = 10 < So the fraction is 10/5
