6x + 6 > 3x+ 15
3x > 9
x > 3
Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:
The series is an arithmetic series with first term (a1) -9 and common difference (d) 5. Then the general term (an) is ...
an = a1 +d(n-1) = -9 +5(n-1) = -14 +5n
The summation notation indicates the sum of "n" of these terms.
Heya!
Answer is 
<u>EXPLANATION</u><u> </u><u>:</u><u>-</u>
Given
x-y= -5
x-y=1³
Substitute value of x - y as 1³ in first equation,
=> x-y= -5
=> 1³ = -5
As we can't do anything more to solve, we can finally write as :

~ Benjemin360