Question

решите уравнение 1-4(5+2x)=13​

Answer 1

1-4(5+2x)=13;

1-20-8х=13;

-19-8х=13;

8х=-19-13;

8х=-32;

х=-32/8;

х=–4.

Ответ: –4.

Answer 2

Ответ:

1-20-8х=13

-8х=13-1+20

-8х=32

х=32÷(-8)

х=-4