\(\frac{x+1}{2x+1}=\frac{0,5x+2}{x+3}\)ĐKXĐ: \(x\ne-\frac{1}{2};x\ne-3\)
\(\Rightarrow\left(x+1\right)\left(x+3\right)=\left(2x+1\right)\left(0,5x+2\right)\)
\(\Leftrightarrow x^2+x+3x+3=x^2+0,5x+4x+2\)
\(\Leftrightarrow x^2+4x+3=x^2+4,5x+2\)
\(\Leftrightarrow x^2-x^2+4x-4,5x=2-3\)
\(\Leftrightarrow-0,5x=-1\)
\(\Leftrightarrow x=2\)
vậy x=2
tìm x:
/0,5x - 2/ - /x + \(\frac{2}{3}\)/=0
2x-/x+1/ = \(\frac{-1}{2}\)
tìm x :
0,5x - 3/2x = 3\(0,5x-\frac{3}{2}x=\frac{2}{7}\)
0,5x -2/3 (x+1)=-1/12
Tìm \(x\) :
\(a.1\dfrac{2}{4}x-1\dfrac{2}{3}=2\dfrac{3}{5}\) \(b.0,5x-\dfrac{2}{3}x=\dfrac{7}{12}\) \(c.5,5x=\dfrac{1}{2}\)
0,5x-2/3(x-1)=1/6
0,5x-2/3.(x-2)=1/6
Giúp mik vs.Mik đg gấp.Pls!!!
TÌM X BIẾT
\(0,5x-75\%x=\left(\frac{1}{3}-1\right)^2\)
1/ tìm a,b ( a,b khác 0 ) biết :
1/a + 1/b = 5/9
2/ So sánh :
A = abc + 1700
B = 123c + ab5 + ab7
3/Tìm x biết :5/2x - 0,5x= 16
Tìm x, biết: \(\dfrac{1}{5}-\dfrac{1}{2}:\left(0,5x-1,5\right)=0,35\)
