Question 612700
5^(3x)=25^(2x+1)
5^(3x)=5^(2(2x+1)
5^(3x)=5^(4x+2)
3x=4x+2
-x=2
x=-2
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Looks good to me.
check the answer
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{{{5^-6 = 25^(-3)}}}
{{{1/125 = 1/125}}}