Question

Решите уравнение: -8/9(3a-12)=3(a-12)

Answer 1

Ответ:

$a=\dfrac{140}{17}$

Объяснение:

$-\dfrac89(3a-12)=3(a-12)\\\\-\dfrac83(a-4)=3(a-12)~~\Big|~\cdot 3\\\\-8(a-4)=9a-12\cdot9\\\\-8a+32=9a-108\\\\17a=140\\\\a=\dfrac{140}{17}$