Question 1122014
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3/8a-8=13
a=56
but how did it get to that number the calculator wasn't specific enough.
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What is your equation?
{{{system(3/8a-8=13,or, 3/(8a-8)=13,or,(3/8)a-8=13)}}}


Whatever you start, just solve the equation for a.  Using the calculator to compute what you find will be straightforward, as long as you understand operator precedence.


The equation you most likely had was {{{(3/8)a-8=13}}}.  You should be able to solve with no trouble.  If you want to check your answer a=56, then:
{{{(3/8)*56-8}}}


3 DIV BY 8 =
MULT BY 56 MINUS 8 =


and 
You will get on the calculator, 13.