Question 320905
1.{{{3^x+2^y= 995}}}
2.{{{3^x-2^y= 473}}}
Add eq. 1 and eq. 2 together,
{{{3^x+2^y+3^x-2^y=1468}}}
{{{2*3^x=1468}}}
{{{3^x=734}}}
Then from eq. 1,
{{{734+2^y=995}}}
{{{2^y=261}}}
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{{{3^x=734}}}
{{{x=log(3,(734))}}}
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{{{2^y=261}}}
{{{y=log(2,(261))}}}
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{{{x+y=log(3,(734))+log(2,(261))}}}
{{{x+y=log((734))/log((3))+log((261))/log((2))}}}