\(a,\left|x-11\right|+x-11=0\)

\(\Rightarrow\left|x-11\right|=11-x\)

\(\Rightarrow\orbr{\begin{cases}x-11=11-x\\x-11=x-11\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x=11\\x...\left(dbl>:\right)\end{cases}}\)

\(x-\frac{1}{9}-\frac{3}{5}=\frac{3}{6}\)

\(x=\frac{3}{6}+\left(\frac{1}{9}-\frac{3}{5}\right)\)

\(x=\frac{3}{6}+\left(-\frac{22}{45}\right)\)

\(x=\frac{1}{90}\)

\(\frac{-12}{25}.\frac{3}{4}-x+\frac{6}{-11}-\frac{5}{6}=0\)

\(\frac{-9}{25}-x+\left(\frac{-91}{66}\right)=0\)

\(\frac{-9}{25}-x=0+\left(\frac{-91}{66}\right)\)

\(\frac{-9}{25}-x=\frac{-91}{66}\)

\(x=\left(\frac{-9}{25}\right)-\left(\frac{-91}{66}\right)\)

\(x=\frac{1681}{1650}\)

mình cần gấp giúp mình với

1.x=0

2.x=16

tik nha

a)

7x - 2x = 6¹⁷ : 6¹⁵ + 44 : 11

=> 5x = 6² + 4

=> 5x = 36 + 4

=> 5x = 40

=> x = 40 : 5

=> x = 8

Vậy x = 8

b)

2^x+1 . 2²⁰¹⁴ = 2²⁰¹⁵

=> 2^x+1 = 2²⁰¹⁵ : 2²⁰¹⁴

=> 2^x+1 = 2¹

=> x+1 = 1

=> x = 1-1

=> x = 0

c)

\(|\)x-2\(|\) = 0

=> x-2 = 0

=> x = 0+2

=> x = 2

d) 

2^x : 2⁵ = 1

=> 2^x = 1 . 2⁵

=> 2^x = 2⁵

=> x = 5

Vậy x = 5

a) -6/7-1/5.x=-4

-1/5.x=-4+6/7

-1/5.x=-34/7

x=34/7:-1/5

x=34/7.-5

x=-170/7

\(6x+x=5^{11}:5^9+3^1\)

\(\Leftrightarrow7x=5^2+3\)

\(\Leftrightarrow7x=28\)

\(\Leftrightarrow x=\frac{28}{4}\)

\(\Leftrightarrow x=7\)

\(5x+2x=6^2+5^0\)

\(\Leftrightarrow7x=36+1\)

\(\Leftrightarrow7x=37\)

\(\Leftrightarrow x=\frac{37}{7}\)

\(6x+x=5^{11}:5^9+3^1\)

\(6x+x=5^{11-9}+3^1\)

\(6x+x=5^2+3^1\) 

\(6x+x=25+3\) 

\(6x+x=28\)

\(\left(6+1\right).2x=28\) 

\(7.2x=28\)

\(2x=28:7\)

\(2x=4\)

\(x=4:2\)\(x=2\)

Tự làm

giúp mk vs

lm đc câu nào thì lm 

mk k 

a, \(\frac{1}{6}x+\frac{1}{10}-\frac{4}{15}x+1=0\)

\(\Leftrightarrow-\frac{1}{10}x=-\frac{11}{10}\)

\(\Leftrightarrow x=11\)

b,\(\left(\frac{1}{7}x-\frac{2}{7}\right)\left(-\frac{1}{5}x+\frac{3}{5}\right)\left(\frac{1}{3}x+\frac{4}{3}\right)=0\)

\(\Leftrightarrow\frac{1}{7}x-\frac{2}{7}=0\)hoặc \(-\frac{1}{5}x+\frac{3}{5}=0\)hoặc \(\frac{1}{3}x+\frac{4}{3}=0\)

+) \(\frac{1}{7}x-\frac{2}{7}=0\Leftrightarrow\frac{1}{7}x=\frac{2}{7}\Leftrightarrow x=2\)

+)\(-\frac{1}{5}x+\frac{3}{5}=0\Leftrightarrow-\frac{1}{5}x=-\frac{3}{5}\Leftrightarrow x=3\)

+)\(\frac{1}{3}x+\frac{4}{3}=0\Leftrightarrow\frac{1}{3}x=-\frac{4}{3}\Leftrightarrow x=-4\)

  c, \(\frac{1}{2}x-\frac{11}{15}:\frac{33}{35}=-\frac{1}{3}\)

\(\Leftrightarrow\frac{1}{2}x-\frac{7}{9}=-\frac{1}{3}\)

\(\Leftrightarrow\frac{1}{2}x=\frac{4}{9}\)

\(\Leftrightarrow x=\frac{8}{9}\)

a/ \(\frac{1}{6}x+\frac{1}{10}-\frac{4}{15}x+1=0\)

    \(\Rightarrow-\frac{1}{10}x=-\frac{11}{10}\)

     \(\Rightarrow x=11\)

b/ \(\left(\frac{1}{7}x-\frac{2}{7}\right)\left(-\frac{1}{5}x+\frac{3}{5}\right)\left(\frac{1}{3}x+\frac{4}{3}\right)=0\)

   \(\Rightarrow\frac{1}{7}x-\frac{2}{7}=0\Rightarrow\frac{1}{7}x=\frac{2}{7}\Rightarrow x=2\)

hoặc \(-\frac{1}{5}x+\frac{3}{5}=0\Rightarrow-\frac{1}{5}x=-\frac{3}{5}\Rightarrow x=3\)

hoặc \(\frac{1}{3}x+\frac{4}{3}=0\Rightarrow\frac{1}{3}x=-\frac{4}{3}\Rightarrow x=-4\)

                                              Vậy x = 2, x = 3, x = -4

c/ \(\frac{1}{2}x-\frac{11}{15}:\frac{33}{35}=-\frac{1}{3}\)

     \(\Rightarrow\frac{1}{2}x-\frac{7}{9}=-\frac{1}{3}\)

      \(\Rightarrow\frac{1}{2}x=\frac{4}{9}\Rightarrow x=\frac{8}{9}\)

                                                                       Vậy x = 8/9

Câu 1:

Câu 1: x.(x+ 7) = 0

x = 0 hoặc x + 7 = 0

x + 7 = 0 suy ra x = - 7

Vậy x ∈ {0; - 7}

Câu 2: (x + 12).(x - 3) = 0

x + 12 = 0 hoặc x - 3 = 0

x + 12 = 0 suy ra x = - 12

x - 3 = 0 suy ra x = 3

Vậy x ∈ {-12; 3}

Câu 3:

(-x + 5).(3 - x) = 0

- x + 5 = 0; hoặc 3 - x = 0

- x + 5 = 0 suy ra x = 5

3 - x = 0 suy ra x = 3

Vậy x ∈ {0; 3}

Câu 4:

x(x + 2).(7 - x) = 0

x = 0 hoặc x + 2 = 0 hoặc 7 - x = 0

x + 2 = 0 suy ra x = - 2

7 - x = 0 suy ra x = 7

Vậy x ∈ {0; -2; 7}