<PRE><B>Question 1050938</B>
Your problem is {{{20x = 186}}}, where x is equal to the length of the rectangle.

1. Divide by 20 on both sides.
{{{(20x)/20 = 186/20}}}

2. Simplify
{{{x = 93/10}}}
       OR
{{{x = 9.3}}}

CHECK
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20 (width) * 9.3 (length) = 186.</PRE>