Question

tìm x,biết :

b(-x)+14=12

Answer 1

b) Ta có: (-x)+14=12

\(\Leftrightarrow-x+14=12\)

\(\Leftrightarrow-x=12-14=-2\)

hay x=2

Vậy: x=2

Answer 2

-x = 12 - 14

-x = -2

\(\Rightarrow\)x = 2

Answer 3

-x = 12 - 14

-x = -2

$\Rightarrow$x = 2