5 - 7 = - 2 ;
- 2 - 7 = - 9 ;
-9 - 7 = -16 ;
"common difference" d is - 7 ;
The n-th term of an arithmetic sequence is of the form <span>an = a1 + (n – 1)d ;
</span>a50 = 5 + 49 × ( - 7 ) = 5 - 343 = - 338;
Answer:
x = 
Step-by-step explanation:
Given
8x + 9y = gx + 5z ( subtract gx from both sides )
8x - gx + 9y = 5z ( subtract 9y from both sides )
8x - gx = 5z - 9y ( factor out x on the left side )
x(8 - g) = 5z - 9y ← divide both sides by (8 - g)
x = 
Answer:
y=3x
Step-by-step explanation:
So our y has the values -3, 0, 3, 6, 9
The equation could be : y= 3x,
because (x= -1, y= -3), (x=0, y=0), (x=1, y=3), (x=2, y=6), (x=3, y=9)…