Answer:
12/30
Step-by-step explanation:
So we know that the denominator-numerator=18
And we also know that it's equal to 4/10 or 2/5.
Soooooooooooooo the most easiest is just to trial and error: 12/30
But I don't really know the more complex formula...
Answer:
x=20
Step-by-step explanation:
x - 5 = 15
x +5 = +5
x = 20
f(x) = 2x
f(x) = 2x + 4 (Is translated 4 units up.)
3/4 changed to 6/8 makes it a 7/8 when adding making this most simplified into 7/8