Question

Tìm số tự nhiên x,biết: 
a) x : 13 = 41;
b) 4x : 17 = 0;
c) 8(x - 3) = 0.

Answer 1

a) x : 13 = 41

x=41.13

x=533
b) 4x : 17 = 0

⇒4x=0

⇒x=0
c) 8(x - 3) = 0

⇒x-3=0

x=0+3

x=3

Answer 2

a) 533

b)0

c) 3

 

Answer 3

a. x : 13 = 41

<=> x = 41 . 13

<=> x = 533

b. 4x : 17 = 0

<=> 4x = 0

<=> x = 0

c. 8(x - 3) = 0

<=> 8x - 24 = 0

<=> 8x = 24

<=> x = 3

Answer 4

a)\(x :13 = 41 \)

\(\Leftrightarrow\)\(x=41 . 13\)

\(\Leftrightarrow\)\(x=533\)

\(b)4x:17=0\)

\(\Leftrightarrow\)\(4x=0\)

\(\Leftrightarrow\)\(x=0\)

\(c)8(x-3)=0\)

\(\Leftrightarrow\)\(x-3=0\)

\(\Leftrightarrow\)\(x=3\)

Answer 5

a) x : 13 = 41

          x  = 41 x 13

          x  = 533

b) 4x : 17 = 0

    4x        = 0 x 17 = 0

      x        = 0 : 4 = 0

c) 8(x - 3) = 0

       x - 3   = 0 : 8 = 0

            x   = 0 + 3 = 3

Answer 6

\(a,x:3=41\Rightarrow x=41.3\Rightarrow x=123\)

\(b,4x:17=0\Rightarrow4x=0\Rightarrow x=0\)

\(c,8\left(x-3\right)=0\Rightarrow x-3=0\Rightarrow x=3\)