\(x⋮12,x⋮18\Rightarrow x\in BC\left(12,18\right)=\left\{0;36;72;108;144;180;216,...\right\}\)

Mà \(50< x< 200\Rightarrow x\in\left\{72;108;144;180\right\}\)

Vì x chia hết cho 12, x chia hết cho 18 và 50 < x < 200

Nên x = BC (12,18) và 50 < x < 200

Vậy X \(\varepsilon\) {72, 108, 144, 180}

=> 90 * 100 *x  = 90 * 130

=> 9000 * x = 11700

=> x= 1,3

1,3

tick nha Hatake Kakashi

`= 99 xx 98 xx ... xx 0.`

`= 0 xx A.`

`= 0`

=0

=0

\(100\cdot90\cdot60\cdot77\cdot100=100^2\cdot90\cdot60\cdot77\)

\(=4158000000\)(4 tỉ 158 triệu)

x + 90 = 100 + 90

x + 90 = 190

x = 190 - 90

x = 100

x + 90 = 100 + 90

x + 90 = 190

x         = 190 - 90

x         = 100

 Vậy x = 100

x+90=100+90

x+90=190

    x=190-90

    x=100 nha

x + 90 = 90 + 100

x + 90 = 190

x         = 190 - 90

x         = 90

tk mk mk tk lại

x+90=190

x=190-90

x=100

x + 90 = 90 + 100

x + 90 = 190

x         = 190 - 90

x         = 90

tk mk mk tk lại

90 + x = 100

        x = 100 - 90

        x = 10

x - 10 = 90

      x = 90 + 10

     x = 100

x - 90 = 10

      x = 10 + 90

      x = 100

k 

90 + x = 100

x = 100 - 90

x = 10

x - 10 = 90

x = 90 + 10

x = 100

x - 90 = 10

x = 10 + 90

x = 100

90 + x = 100

x = 100 - 90

x = 10

x - 10 = 90

x = 10 + 90

x = 100

x - 90 = 10

x = 10 + 90

x = 100

Xong rùi k nhé

100x100-1000+90=9090

100 x 100 -1000 + 90

=10000-1090

=8910

100x100-1000+90

=10000-1090=8910

\(100-\left|x+1\right|=90\)

\(\Rightarrow\left|x+1\right|=100-90=10\)

\(\Rightarrow\left[{}\begin{matrix}x+1=10\\x+1=-10\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=9\\x=-11\end{matrix}\right.\)

⇒[x+1=10x+1=−10⇒[x+1=10x+1=−10⇒[x=9x=−11