7^x =6^(x+2.1)
x*log(7)=(x+2.1)*log(6)
x /(x+2.1)=log(6)/log(7)= 0.7781512503836476 / 0.8450980400142612
x/(x+2.1)=0.92078222116017
x=0.92078222116017*x +2.1*0.92078....
(x-0.92078222...x)=2.1*0.92078222116017
0.07921777883983005x=0.9207822211616017*2.1
x=(that stuf)/0.079217...
x=12.623428921488518*0.9207822211616017*2.1
me leev that step for yu tu du