Question

Решите 2 уравнение умаляю!!
11^5х+3 = 121^2х
log1/3(13 -x)= -2

Answer 1

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Answer 2

$11^{5x+3}= 11^{2*2x}$
5x+3=4x
x= -3

log1/3(13-x)= log1/3(9)
13-x=9
x= 4