( x : 23 + 45 ) . 67 = 8911

=> x : 23 + 45 = 133

=> x : 23 = 88

=> x = 2024

( x : 23 + 45 ) . 67 = 8911

=> x : 23 + 45 = 133

=> x : 23 = 88

=> x = 2024

# ~Hok tốt~

=> x/23 + 45 = 133

=> x/23 = 88

=> x = 23 x 88 = 2024

( \(\frac{x}{23}\) + 45 ) .67 = 8911

 x : 23 + 45       = 8911:67

 x : 23 + 45       = 133

    x : 23            =  133 - 45

       x : 23         =  88

            x           = 88 . 23

            x           = 2024

vậy x = 2024

(x:23+45):67=8911

x:23+45=8911x67

x:23+45=597037

x:23=597037-45

x:23=596992

x=596992x23

=13730816

=13730816

x=13730816 nhé!

\(\left(x:23+45\right).67=8911\)

\(\Rightarrow x:23+45=8911:67\)

\(\Rightarrow x:23+45=133\)

\(\Rightarrow x:23=133-45\)

\(\Rightarrow x:23=88\)

\(\Rightarrow x=23.88\)

\(\Rightarrow x=2024\)

Vậy \(x=2024\)

\(\left(x:23+45\right)\cdot67=8911\)

\(x:23+45=\frac{8911}{67}=133\)

\(x:23=133-34\)

\(x:23=99\)

\(\Rightarrow x=99\cdot23\)

\(\Rightarrow x=2277\)

(x:23+45).67=8911

       x:23+45=133

             x:23=88

                 x=2024

Vậy x=2024

\((x-17)+52=158\)

\(\Rightarrow x-17=158-52\)

\(\Rightarrow x-17=106\)

\(\Rightarrow x=106-17\)

\(\Rightarrow x=89\)

( x- 17 ) + 52 = 158

x - 17 = 158 - 52

x - 17 = 106

x = 106 + 7

x = 113

Vậy x = 113

( x : 23 + 45 ) : 67 = 8911

x : 23 + 45 = 8911 x 67

x : 23 + 45 = 597037

x : 23 = 597037 - 45 

x : 23 = 596992

x = 596992 x 23

x = 13730816

Vậy x = 13730876

(x-17)+52=158

x - 17 = 158 - 52

x - 17 = 106

x= 106+17

x= 123

(x :23 + 45):67=8911

(x : 68 ) : 67 = 8911

x : 68 = 8911 * 67

x : 68 = 597037

x= 597037 x 68

x = 40598516

k mình nhé !!!

(x:23+45)x67=8911

x:23+45=8911:67

x:23+45=133

x:23=133-45

x:23=88

    x=88x23

    x=2024

vậy x=2024

\(\left(\frac{x}{23}+45\right).67=8911\)

\(\frac{x}{23}+45=133\)

\(\frac{x}{23}=133-45\)

\(\frac{x}{23}=88\)

\(x=88.23\)

\(x=2024\)

   Vậy x = 2024

(x:23+45)*67=8911

x:23+45       =8911:67

x:23+45       =133

x                  =133-(45+23)

x                  =111

a/ \(3636\div\left(12x-91\right)=36\)

                 \(12x-91=3636\div36\)

                 \(12x-91=101\)

                 \(12x=101+91\)

                  \(12x=192\)

                 \(x=192\div12\)

                 \(x=16\)

b/ \(\left(x\div23+45\right)\times67=8911\)

    \(x\div23+45=8911\div67\)

   \(x\div23+45=133\)

  \(x\div23=133+45\)

 \(x\div23=178\)

 \(x=178\times23\)

\(x=4094\)

5 . ( x-3 ) -18 = 2 

5x - 15 = 2 + 18 

5x - 15 = 20

5x = 20 + 15 

5x = 35 

 x= 7

Vậy x= 7

\(5x^2-15x-18=2\)

\(5x^2-15x-20=0\)

\(5\left(x^2-3x-4\right)\)\(=0\)

\(5\left(x^2-2xX\frac{3}{2}+\frac{9}{4}-\frac{9}{4}-4\right)=0\)

\(5\) {\(\left(x-\frac{3}{2}\right)^2-\frac{25}{4}\)} \(=0\) 

 \(\left(x-\frac{3}{2}\right)^2\) \(=\frac{25}{4}\)

\(x=\frac{\sqrt{25}}{2}+\frac{3}{2}\) hoặc \(x=\frac{-\sqrt{25}}{2}+\frac{3}{2}\)

\(\frac{x}{23}+45=597037\)

\(\frac{x}{23}=596992\)

\(x=13730816\)

Bài 1 :

\(5\cdot\left(x-3\right)-18=2\)

\(5x-15-18=2\)

\(5x-15=2+18\)

\(5x-15=20\)

\(5x=20+15\)

\(5x=35\)

\(x=35:5\)

\(x=7\)

Bài 2 :
\(\left(x:23+45\right):67=8911\)

\(x:23+45=8911:67\)

\(x:23+45=133\)

\(x:23=133-45\)

\(x:23=88\)

\(x=88\cdot23\)

\(x=2024\)

a/ 1818 : (6x - 37) = 18

6x- 37 = 101

6x = 138

x= 23

b/ (x : 23 + 45) . 67 = 8911

x : 23 + 45 = 133

x: 23 = 88

x = 2024

a/  1818 : ( 6x - 37 ) = 18

                  6x - 37   = 1818 : 18

                  6x - 37   = 101

                  6x          = 101 + 37

                  6x          = 138

                   x           = 138 : 6

                   x           = 23

b/  ( x : 23 + 45 ) . 67  = 8911

                 x : 23 + 45 = 8911 : 67

                 x : 23 + 45 = 133

                         x : 23 = 133 - 45

                         x : 23 = 88

                                x = 88 . 23

                                x = 2024

\(a,1818:\left(6x-37\right)=18\)

\(\Leftrightarrow6x-37=101\)

\(\Leftrightarrow6x=138\)

\(\Leftrightarrow x=23\)

Vây x = 23

b, \(\left(\frac{x}{23}+45\right).67=8911\)

\(\Leftrightarrow\frac{x}{23}+45=133\)

\(\Leftrightarrow\frac{x}{23}=88\)

\(\Leftrightarrow x=88.23=2024\)

Vậy x = 2024.