Решите неравинство 5x-3(5x-8)+7=0

Question

Решите неравинство 5x-3(5x-8)+7=0

Answer 1

5x-15x+31=0
-10x=-31
x=3,1

Answer 2

5х-15х+24+7=0
-10х+31=0
10х=-31
х=10:(-31)
х=-3,1