Answer:
3(x−1)=18
Answer:
x=7
Step-by-step explanation:
\frac{3\left(x-1\right)}{3}=\frac{18}{3}
x-1=6
x-1+1=6+1
x=7
Hope I helped
brainliest plz
3, 9, 27, 81, 343, 729, … is a geometric sequence because each term is obtained by multiplying 3 to the preceding term.