Answer:
2 + (7 ÷ 9)x = 5 ÷ 6
Step-by-step explanation:
Given

You can eliminate fractions by turning them into division problems!
2 + (7 ÷ 9)x = 5 ÷ 6
Answer:
x+2
Step-by-step explanation:
The firs 3 observations are x, x+2, x+4
Mean = sum of data/samaple size
Mean = x+x+2+x+4/3
MEan = 3x+6/3
Mean = 3(x+2)/3
Mean = x+2
Hence the required mean is x+2
Answer:
4)x= g-c
5)x =u+k
6)x = g-c
7)
8)
9)
10)
11)
12)
13)a= d -r + c
14)
Step-by-step explanation:
4) g= c+x
x= g-c
5) u=x-k
x =u+k
6)g = c+x
x = g-c
7) 
8) g=xc

9) 12am = 4

10)-3x+2c = -3
2c = -3 +3x
2c +3 = 3x

11) am= n+p

12)
13)a-c = d-r
a= d -r + c
14)xm= np

I think 6 but how r u supposed to know how many marbles you started with
Answer:
90 degrees
Step-by-step explanation: