Answer:
The correct answer is option 3. (20, 4, 5)
Step-by-step explanation:
To solve this problem we use the substitution method.
(i)
(ii)
(iii)
We start by clearing x in (iii) and clearing y in (ii).
(iii)
(ii)
Now we substitute (iii) in (ii)
(iv)
Now we substitute (iii) and (iv) into (i) and clear z.
(v)



If
(v)
We substitute (v) in (iii) and then substitute (v) in (iv)

The correct answer is option 3.
Answer:
1/3 · -x < 12
Step-by-step explanation:
one third meaning 1/3
"of" meaning multiplication
"opposite" of a "number" meaning negative x
Less than 12 meaning > 12
Is there any guide or institutions on how to do it?
You can graph the points and see if they fall in a straight line. After doing this, you'd be able to see that all the lines fall in the same line. This means that the points in the table are linear.<span />