Answer:

Step-by-step explanation:

Now taking 3x to right hand side of the eqn . & +1 to the left side eqn. , sign of 3x changes to -3x & +1 changes to -1 .

Now solving this , we get the value of x.

Answer:
???
Step-by-step explanation:
theres no triangle
Answer: y = 10x + 30 is the correct answer
Answer:
1820
Step-by-step explanation:
The sum of the first n terms of a geometric series with common ratio r and first term a is:
a(1-r^n)/(1-r). Plugging this in 5(1-3^6)/(1-3)=1820