Question 306168
Point 1: {{{ 1=ab^1}}}
Point 2:{{{ 3=ab^2}}}
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{{{ ab^2/ab=3/1}}}
{{{b=3}}}
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{{{ ab=1 }}}
{{{ a(3)=1}}}
{{{ a=1/3}}}
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{{{ y=(1/3)3^x=3^(x-1)}}}