Question

решите уравнение -3-3(3-2x)=1​

Answer 1

Ответ:

2,16

Пошаговое объяснение:

-3-3(3-2х)=1

-3-9+6х=1

6х=1+12

6х=13

х≈2,16

Answer 2

$-3-3(3-2x)=1\\\\-3-9+6x=1\\\\6x=1+3+9\\\\6x=13\\\\x=13:6\\\\x=2\frac{1}{6}$

Проверка:

$-3-3(3-2*2\frac{1}{6})=1\\\\-3-3(3-2*\frac{13}{6})=1 \\\\-3-3(3-\frac{26}{6})=1\\\\-3-3*3-3*(-\frac{26}{6} )=1\\\\-3-9+ \frac{78}{6}=1\\\\-12+\frac{78}{6}=1\\\\- \frac{72}{6}+\frac{78}{6}=1\\\\\frac{6}{6}=1\\\\1=1$