0.7(1-0.85^n)/1-0.85=0.4

Solution for 0.7(1-0.85^n)/1-0.85=0.4 equation:

0.7(1-0.85^n)/1-0.85=0.4

We move all terms to the left:

0.7(1-0.85^n)/1-0.85-(0.4)=0

We add all the numbers together, and all the variables

0.7(1-0.85^n)/1-1.25=0

We multiply all the terms by the denominator


0.7(1-0.85^n)-(1.25)*1=0

We add all the numbers together, and all the variables

0.7(1-0.85^n)-1.25=0

We multiply parentheses

0n+0.7-1.25=0

We add all the numbers together, and all the variables

n-0.55=0

We move all terms containing n to the left, all other terms to the right

n=0.55