3x - 15 = 39
+ 15 +15
3x = 54 (divide by 3 on each side)
X = 18
bearing in mind that an explicit form is simply the sequence written as a function of some variables, so we simply simplify and add like-terms.

Answer:
We need to subtract both equations. 2x3+30x-130-2x3+3x+520
that gives
30x-130+3x + 520
33x+390
D is answer
How I’d do it:
5/6 three times makes 15/6. Made into a mixed fraction is 2 3/6, which in its simplest form is 2 1/2.
When converted to ounces, assuming that 6/6 is one complete ounce, then you get 2.5 ounces.
The total weight she picked up is 2.5 ounces.
Answer:
Step-by-step explanation:
-14 is an integer
We can also tell as rational number
as -14 can be written in the form p/q, ie -14/1