Question 669391
Starting with
b = .26h - 18.85
...
Add 18.85 to both sides
{{{highlight(18.85) + b = .26h - cross(18.85) + cross(18.85)}}}
...
18.85 +b = .26h
Divide both sides by .26
{{{(18.85 + b)/highlight(.26) = (cross(.26)h)/cross(.26)}}}
...
h = {{{(18.85 + b)/.26}}}
which is the same as 
{{{highlight_green(h = 72.5 + b/.26)}}}

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