Question

-4x - 9= -2x - 3[tìm số nguyên x]

M.n giup mk vs , mk sẽ tick cho

Answer 1

4x - 9= -2x - 3

4x + 2x = -3 + 9

6x         = 6

 x          = 6 : 6

x           = 1

Vậy x = 1

~ HOK TỐT ~

Answer 2

(=)4x+9=2x+3

(=)2x+6=0

(=)2(x+3)=0

(=)x=-3

Answer 3

\(-4x-9=-2x-3\)

\(-2x=6\)

\(x=-3\)

hết

Answer 4

\(-4x-9=-2x-3\)

\(-4x-9+2x+3=0\)

\(-2x-6=0\)

\(-2\left(x+3\right)=0\Leftrightarrow x=-3\)

Answer 5

\(-4x-9=-2x-3\)

\(\Rightarrow-4x+2x=-3+9\)

\(\Rightarrow-2x=6\)

\(\Rightarrow x=\frac{6}{-2}\)

\(\Rightarrow x=-3\)

Answer 6

-4x - 9= -2x - 3

-4x + 2x = - 3 + 9

        -2x = 6

           x = 6 : (-2)

           x = -3

Vậy x = -3 

Answer 7

-4x - 9    = -2x - 3

-4x + 2x = 9 - 3

        -2x = 6

           x = -3

Vậy x = -3.