Question

7^2x-6 = 49

Answer 1

\(7^{2x-6}=49\\ \Rightarrow7^{2x-6}=7^2\\ \Rightarrow2x-6=2\\ \Rightarrow2x=8\\ \Rightarrow x=4\)

Answer 2

7^2x-6 = 49
7^2x-6=72
2x-6=2 
2x=6+2
2x=8
2x=2^3
x=3