Lần này thì đúng rồi :
\(\frac{2x}{3}+\frac{2x-1}{6}=4-\frac{x}{3}\)
\(\Leftrightarrow\frac{2x}{3}+\frac{x}{3}-\frac{1}{6}=4-\frac{x}{3}\)
\(\Leftrightarrow\frac{2x}{3}+\frac{x}{3}+\frac{x}{3}=4+\frac{1}{6}\)
\(\Leftrightarrow\frac{4x}{3}=\frac{25}{6}\)
\(\Leftrightarrow x=\frac{25}{8}\)
Giai phương trình : a ) \(\frac{2x}{3}+\frac{2x-1}{6}=4-\frac{x}{3}\)
Giải phương trình sau :
a) \(\frac{x^2-2x+1}{x^2-2x+2}+\frac{x^2-2x+2}{x^2-2x+3}=\frac{7}{6}\)
b) \(\frac{x+2}{2008}+\frac{x+3}{2007}+\frac{x+4}{2006}+\frac{x+2028}{6}=0\)
Giair phương trình
a,\(\frac{x+16}{49}+\frac{x+18}{47}=\frac{x+20}{45}-1\)
b,\(\frac{x-69}{30}+\frac{x-67}{32}+\frac{x-65}{34}=\frac{x-63}{36}+\frac{x-61}{38}+\frac{x-59}{40}\)
c,(2x-5)3-(3x-4)3+(x+1)3=0
d,(x2+3x-4)3+(3x2+7x+4)3=(4x2+10x)3
Giải phương trình
a) \(\frac{2x-5}{x+5}=3\)
b) \(\frac{x^2-6}{x}=x+\frac{3}{2}\)
c)\(\frac{\left(x^2
+2x\right)-\left(3x+6\right)}{x-3}=0\)
d)\(\frac{5}{3x+2}=2x-1\)
e)\(\frac{2x-1}{x-1}+1=\frac{1}{x-1}\)
g)\(\frac{x+3}{x+1}+\frac{x-2}{x}=2\)
Giải phương trình
a) \(\frac{2x-5}{x+5}=3\)
b) \(\frac{x^2-6}{x}=x+\frac{3}{2}\)
c) \(\frac{\left(x^2+2x\right)-\left(3x+6\right)}{x-3}=0\)
d) \(\frac{5}{3x+2}=2x-1\)
e) \(\frac{2x-1}{x-1}+1=\frac{1}{x-1}\)
g) \(\frac{x+3}{x+1}+\frac{x-2}{x}=2\)
Làm ơn. Help me!!
Giải phương trình
a) \(\frac{2}{x+\frac{1}{1+\frac{x+1}{x-2}}}=\frac{6}{3x-1}\)
b) \(\frac{3x-1}{x-1}-\frac{2x+2}{x+2}+\frac{4}{x^2+2x-3}=1\)
giải phương trình
a,\(\left(\frac{1}{1\cdot2}+\frac{1}{2\cdot3}+\frac{1}{3\cdot4}+\frac{1}{9\cdot10}\right)\left(x-1\right)+\frac{1}{10}x=x-\frac{9}{10}\)
b,\(\frac{x+1}{1}+\frac{2x+3}{3}+\frac{3x+5}{5}+\frac{20x+39}{39}=22+\frac{4}{3}+\frac{6}{5}+\frac{40}{39}\)
c,(x-20)+(x-19)+(x-18)+...+100+101=101
Giải các phương trình:
a) \(\frac{1}{x-1}-\frac{3x^2}{x^3-1}=\frac{2x}{x^2+x+1}\)
b) \(\frac{3}{\left(x-1\right)\left(x-2\right)}+\frac{2}{\left(x-3\right)\left(x-1\right)}=\frac{1}{\left(x-2\right)\left(x-3\right)}\)
c) \(1+\frac{1}{x+2}=\frac{12}{8+x^3}\)
d) \(\frac{13}{\left(x-3\right)\left(2x+7\right)}+\frac{1}{2x+7}=\frac{6}{\left(x-3\right)\left(x+3\right)}\)
3 Giải các phương trình
a/ 10 - 4x = 2x - 2
b/\(\frac{5x-2}{3}\)=\(\frac{5-3x}{2}\)
c/3x - 15 = 2x (x - 5)
d/\(\frac{x^2-6}{x}=x+\frac{3}{2}\)