Question

решить уравнение 5(x-7)=9x

Answer 1

$5(x - 7) = 9x \ 5x - 35 = 9x \ 5x - 9x = 35 \ - 4x = 35 \ \ x = - frac{35}{4} \ \ x = - 8 frac{3}{4}$
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Answer 2

5x-35-9x=0
-4x-35=0
-4x=35
x= -8,75
Ответ:-8,75