Câu hỏi của liluli

Question

$\dfrac{x+2}{0,5}=\dfrac{2x+1}{2}$

HELP ME!!!

Thanh Trà · Accepted Answer

$\dfrac{x+2}{0,5}=\dfrac{2x+1}{2}$

$\Leftrightarrow\left(x+2\right).2=\left(2x+1\right).0,5$

$\Leftrightarrow2x+4=x+0,5$

$\Leftrightarrow x=-3,5$

Vậy...Câu trả lời: $\dfrac{x+2}{0,5}=\dfrac{2x+1}{2}$

$\Leftrightarrow\left(x+2\right).2=\left(2x+1\right).0,5$

$\Leftrightarrow2x+4=x+0,5$

$\Leftrightarrow x=-3,5$

Vậy...

Trần Đăng Nhất · Answer

$\dfrac{x+2}{0,5}=\dfrac{2x+1}{2}$

$\Leftrightarrow\dfrac{4.\left(x+2\right)}{2}=\dfrac{2x+1}{2}$

$\Rightarrow4x+8=2x+1$

$\Leftrightarrow4x-2x=1-8$

$\Leftrightarrow2x=-7$

$\Leftrightarrow x=\dfrac{-7}{2}$

Vậy $x=\dfrac{-7}{2}$Câu trả lời: $\dfrac{x+2}{0,5}=\dfrac{2x+1}{2}$

$\Leftrightarrow\dfrac{4.\left(x+2\right)}{2}=\dfrac{2x+1}{2}$

$\Rightarrow4x+8=2x+1$

$\Leftrightarrow4x-2x=1-8$

$\Leftrightarrow2x=-7$

$\Leftrightarrow x=\dfrac{-7}{2}$

Vậy $x=\dfrac{-7}{2}$

Việt Anh · Answer

$\dfrac{x+2}{0,5}=\dfrac{2x+1}{2}$

$\Rightarrow\dfrac{4\left(x+2\right)}{2}=\dfrac{2x+1}{2}$

$\Rightarrow\dfrac{4x+8}{2}=\dfrac{2x+1}{2}$

$\Rightarrow4x+8=2x+1$

$\Rightarrow4x+2x=8+1$

$\Rightarrow6x=9$

$\Rightarrow x=\dfrac{9}{6}=\dfrac{3}{2}$

Vậy $x=\dfrac{3}{2}$Câu trả lời: $\dfrac{x+2}{0,5}=\dfrac{2x+1}{2}$

$\Rightarrow\dfrac{4\left(x+2\right)}{2}=\dfrac{2x+1}{2}$

$\Rightarrow\dfrac{4x+8}{2}=\dfrac{2x+1}{2}$

$\Rightarrow4x+8=2x+1$

$\Rightarrow4x+2x=8+1$

$\Rightarrow6x=9$

$\Rightarrow x=\dfrac{9}{6}=\dfrac{3}{2}$

Vậy $x=\dfrac{3}{2}$

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